Surprice Car Rental at Heathrow is not located near the airport. I was taken by shuttle on a long drive to Windsor, to a residential area with no nearby businesses. Upon arrival, the staff asked me to pay a £1,500 deposit, explaining that their system could not hold the amount on my credit card due to technical issues. When I returned the vehicle, I was told the deposit would be refunded within three days. However, despite multiple follow-ups and emails, it took an entire month for the deposit to be returned. Based on my experience, I would strongly advise avoiding this company.