A British medic who rented a car in Spain through Booking.com alleges she was unfairly charged nearly double the expected rental cost after returning the vehicle early. Christine Grosart of Evercreech, England, said she was not informed either during booking or at the rental desk that returning the car ahead of schedule would trigger increased fees.

Grosart’s unexpected charge of $673 appeared on her credit card following an early return due to a family emergency. She contended that the fees were unjustified, arguing that Avis, the rental company, could have re-rented the vehicle immediately upon its return. As a medic often working in remote North Sea locations with limited mobile coverage, Grosart faced additional challenges in resolving the dispute, relying on email and messaging apps to communicate.

After initially refusing to release the full refund, Avis acknowledged an error in applying the early return charge and refunded most of the amount. However, Grosart said the company has withheld approximately $130, which she claims is rightfully hers.

Avis confirmed that the additional charge related to a quoted rate change for the early return was applied in error and should not have been charged. Nevertheless, the company maintained that a portion of the withheld amount accounted for an additional driver fee, which Grosart had agreed to and signed for at the time of rental. According to Avis, fees clearly included in the signed rental agreement are contractually binding and therefore non-refundable.

The final refund amount sent to Grosart totaled $552, reflecting the removal of the incorrect early return charge but excluding the contracted driver fee. Consumer advocates note that automated rental systems often adjust rates or impose fees when customers alter their rental periods, but such charges should not be applied mistakenly. Renters are advised to carefully inspect receipts before leaving rental locations and to keep thorough documentation to facilitate any disputes.

In similar cases involving rental companies owned by the same parent group as Avis, customers have reported unexpected charges such as cleaning fees that appear disproportionate or punitive. Experts recommend escalating unresolved issues to higher-level company executives or consumer advocacy organizations when initial attempts to recover disputed fees fail.

Grosart’s case highlights potential pitfalls in rental car agreements and underscores the importance of transparency and clear communication from rental companies regarding fee structures and policies for early returns.