I have fallen victim to fraud from Discovercars.com. There is no way to call Revolut and so I had to email them and explain the fraudulent activity through the app. I emailed support at Revolut a detailed explanation of how I had been a victim of fraud and attached over 20 pictures. They completely ignored my email and emailed several days later to say the transaction looked genuine and they closed the case. I am now in the process of writing to their complaints team. For example Discovercars.com said that I had caused scratches on the front lights of the rental car yet sent me pictures and details of me damaging the front and back bumper. Discovercars.com charged me 50 euros for driving from Spain into Portugal when I had already paid 25 euros for the crossing yet Revolut ignored this. I think you will get the point. Absolutely poor customer service, this need sorting ASAP and reviewing my fraudulent case properly and getting my money back.