I am a genius member with booking.com for many years however they let me down and Ive decided I rather use other booking website and agent instead of booking.com. The reason behind this is because I went on a trip with my partner and booking a hotel but it is actually an apartment like air bnb in europe. We've been abusive by phone call before we arrive through the owner of apartment so we decided to stay in other place (again, book through booking.com) and we contacted booking, com hopefully to get a refund as the owner's attitude is unacceptable. After many emails, booking.com support owner all the way and ignored the fact that we were being abused over the phone. So we lost all our money and what we got is a abusive phone call and threatened us if we dont pay the extra money we unlikely will get the key get into the apartment.
Good bye booking, com, I will not allow you give the opportunity to treat me like this again.