Rented a car, was going to pick up in Bangkok airport. Car rental don't accept Visa debit card, you need credit card (why can you pay with debit card in advance I wonder?). Tried to cancel, find a substitute, impossible. Cannot contact Rentalcars, only chat. Rentalcars takes a cut after you cancel. I was promised to get the rest of the money back after one week (that's long!). After 2,5 weeks, still no money. I contacted them, they say it could be up to 3 weeks. Scammers! Use Rentalcars to find a car hire company, then contact te rental company directly. Save yourself from these losers!