Most car rental companies are perfectly legitimate, but the industry has a reputation for “revenue optimisation by ambush.” A lot of the complaints come from confusing terms, pressure tactics, or billing practices that catch people off guard rather than outright fraud. The biggest problems tend to happen at airports and with third-party booking sites.
Unfortunately, there are occasions where false, exaggerated, or wholly unreasonable claims are submitted by certain rental agencies. In most cases, the precautions outlined below will prevent difficulties arising, however we still regularly encounter situations where highly questionable charges are pursued against clients.
By way of example, in Spain it is not unusual for rental companies to allege that a vehicle requires “extensive cleaning” when there is nothing more than a minimal amount of sand or ordinary travel-related dirt in the footwell area. Similar issues can arise in relation to alleged minor damage, fuel discrepancies, or administrative charges which are entirely disproportionate.
We deal with these types of disputes on a regular basis and are extremely experienced in challenging improper claims, disputing unjustified charges, and pursuing matters aggressively where necessary. Should you encounter any such issues, we are fully equipped to assist and pursue the matter on your behalf.
On occasion, we have also encountered situations where clients have arrived to collect a vehicle and the rental company has refused to release the car without valid or reasonable grounds. In many cases this leaves travellers in an extremely difficult position, particularly at airports or during peak travel periods where alternative vehicles are limited and prices increase substantially.
This is where our particular expertise becomes especially important. In urgent situations, we will often advise clients to secure an alternative vehicle immediately, even where the replacement rental company is charging significantly inflated or excessive rates due to the circumstances.
We would then seek to recover both the losses relating to the original booking which was not honoured, together with the additional costs incurred as a direct consequence of having to obtain replacement transportation at short notice. In appropriate cases, this can include pursuing reimbursement for the price difference, associated losses, and any other consequential costs arising from the failure of the original rental provider to fulfil the contract.
We also strongly recommend that clients record all interactions at the rental desk wherever legally permissible. Ideally, the entire interaction should be filmed, as video evidence can be extremely valuable in the event of a dispute concerning what was said or the reasons given for refusing the vehicle. Where filming is not possible, even an audio recording alone can often prove highly useful in establishing the facts and challenging inaccurate or misleading claims made subsequently by the rental company.
Here are the main ways people get stung:
1. Damage Claims After Return
This is probably the number one complaint.
Typical pattern:
- You return the car.
- Days later you get charged for a scratch, wheel scuff, chipped windscreen, or underbody damage.
- Sometimes the “damage” was already there or is so minor nobody would normally notice it.
Common tricks:
- Poor lighting during pickup.
- Staff rushing you through inspection.
- Tiny marks not recorded.
- Charging for an entire panel repaint for a tiny scratch.
- Billing multiple customers for the same damage.
How to protect yourself:
- Take a full video of the car at pickup and return.
- Film wheels, roof, bumpers, windshield, interior, fuel gauge, odometer.
- Do it while the staff member is present if possible.
- Make sure all existing damage is written on the form.
- Never skip the return inspection if you can avoid it.
2. Fuel Scams
Classic one.
Examples:
- Charging refuelling fees even when the tank is full.
- Claiming the tank was not “completely” full.
- Selling expensive prepaid fuel you never use.
Airport locations are notorious for this.
Best approach:
- Refuel very close to the return location.
- Keep the receipt.
- Photograph the fuel gauge with mileage visible.
3. Insurance Pressure and Fear Tactics
This is enormous in the industry.
You arrive at the desk and suddenly:
- “Your insurance may not cover this country.”
- “Your card coverage is invalid.”
- “Without our package you’re liable for €40,000.”
Technically they may not be lying — but they often exaggerate risk.
Some companies make more profit from insurance upsells than the rental itself.
Common upsells:
- Collision Damage Waiver (CDW)
- Super CDW
- Tyre and glass cover
- Underbody cover
- Key cover
- Personal accident insurance
The cheap online rental can suddenly double in price.
Best defence:
- Know exactly what your booking includes.
- Check whether your credit card already covers CDW.
- Read exclusions carefully — Ireland, Italy, Australia, SUVs, luxury vehicles, etc. are often excluded from card coverage.
4. Third-Party Booking Site Tricks
A huge source of trouble.
You book through a comparison site and:
- The “unlimited mileage” isn’t actually unlimited.
- The insurance sold online is reimbursement insurance, not direct coverage.
- The rental desk refuses the policy and pressures you into buying theirs.
- Hidden deposits appear.
Sometimes the cheapest offers are essentially bait pricing.
Safer approach:
- Book direct when possible.
- If using aggregators, screenshot every term.
5. Massive Security Deposits
People often don’t realise this until arrival.
Examples:
- £200 rental becomes a £2,500 hold on your card.
- Debit cards rejected.
- Only embossed credit cards accepted.
- AMEX not accepted despite website implying otherwise.
This can completely ruin a trip if your available credit gets frozen.
Always check:
- Deposit amount.
- Accepted card types.
- Whether the card must match the driver.
6. “Upgrade” Manipulation
Sometimes they:
- Claim your booked car is unavailable.
- Push you into a more expensive class.
- Add automatic transmission surcharges.
- Push SUVs or luxury models with larger deposits.
Sometimes the “free upgrade” later results in:
- Higher fuel costs
- Higher insurance excess
- Extra toll fees
7. Toll Road and Admin Fee Games
Very common in:
- Italy
- Spain
- Portugal
- Florida
- Australia
Examples:
- Tiny toll becomes a $30 admin fee.
- Automatic transponder charges daily fees even if barely used.
- “Convenience packages” automatically activated.
Some firms make substantial profit from toll administration.
8. Charging for Existing Dirt or Wear
Particularly aggressive companies may:
- Charge cleaning fees for ordinary use.
- Claim “smoking damage.”
- Charge for sand, pet hair, or water spots.
- Bill for “excessive wear.”
A normal amount of dust should not be chargeable, but disputes happen constantly.
9. Border Crossing Traps
Huge issue in Europe.
You take the car:
- From Germany into Switzerland
- From Ireland into Northern Ireland
- From Spain into Portugal
- From Croatia into Bosnia
…and suddenly:
- Insurance invalid
- Extra fees apply
- Contract breach alleged
Always declare cross-border travel in advance.
10. Airport Location Ambushes
Airport franchises are often the worst offenders because:
- Customers are tired.
- People are in a rush.
- There’s pressure to get to hotels/flights.
- Tourists are unfamiliar with local rules.
This is where upselling becomes most aggressive.
11. Late Return Charges
Sometimes brutal.
Examples:
- 61 minutes late = entire extra day.
- Grace period not explained.
- Queues at return counted against customer.
Always:
- Photograph the return time.
- Keep paperwork.
- Use official return lanes.
12. “Phantom” Administrative Fees
These appear as:
- “Processing fees”
- “Violation administration”
- “Fleet recovery”
- “Contract fee”
- “Premium location surcharge”
Sometimes technically disclosed deep in terms but not obvious during booking.
Countries/Regions With the Worst Reputation
Based on consumer complaints rather than legality:
- Some airport franchises in Spain
- Italy
- Portugal
- Certain Florida operators
- Some UK budget brands
- Tourist-heavy Greek islands
Not every branch is bad, though — franchises vary massively.
Safest Strategy Overall
The least stressful approach is usually:
- Book with a major reputable company.
- Avoid the absolute cheapest deal.
- Use a proper credit card.
- Film everything.
- Avoid third-party insurance confusion.
- Get written confirmation for anything unusual.
- Return during staffed hours.
The cheapest rental is often the most expensive by the end. It’s a bit like buying a €2 parachute on eBay — technically you have a parachute, but confidence levels may vary dramatically!
IF YOU HAVE A VEHICLE RETAL CLAIM FOR US TO INVESTIGATE GET IN TOUCH
Car rental and van rental investigations are one of the specialist areas we have dealt with regularly on behalf of newspapers, television companies, and media organisations.
The investigators who work with us in this field are full-time private investigators with a strong interest in investigative journalism. While a private investigator will typically prepare reports for a client, solicitor, or the courts, investigative journalism often goes a step further, exposing illegal or unethical practices to the wider public.
In one particular inquiry, the issue only came to light because employees of a company had been instructed to hire vehicles personally and then reclaim the costs through expenses. Over a period of time, four different members of staff independently rented vehicles from the same rental company. Although the hires did not take place simultaneously, each individual subsequently experienced the same situation — allegations of damage to the vehicle which later proved to be entirely unfounded. The fact that four separate individuals had all been subjected to almost identical false damage claims fundamentally changed the nature of the investigation. What initially appeared to be a straightforward civil dispute quickly evolved into a potential conspiracy to defraud.
We can frequently recover funds with no charge to you and you might even get chance to tell your story on TV or in the press!