Booking.com is literally scamming people. Stay away from this company if you want to keep your money and reservation protected. For the first time, I booked a rental car through this company with hotel booking together. Due to an emergency reason, I had to cancel the reservation. I did not receive any email notification, however, in app it was showing that the refund is pending, but they did not refund my money, and charged full amount. Later I contacted customer service, now they are asking for proof of cancellation. Unfortunately, I trusted their service and I did not keep any screenshots of the cancellation. Now, they cannot refund. Be careful.