Fraud and money scam. Awful customer support.
I stayed at Hampton Inn Houston Airport 03/16 - 03/21 and I was totally dissatisfied.
Firstly, I have booked a room for mentioned dates for US $ 436,50. But when I came to check in, a hotel receptionist didn't find any booking linked with my name. 
Moreover, I was told there were no free room with same conditions as I had previously booked and I was offered with a smaller room.
Furthermore, I was charged an amount of US $ 531,47 as a receptionist said he was unable to provide me the same rate as I had previously booked.
In addition, my room was not perfect and was not cleaned 03/20. 
And the last thing, which deeply irritates me is that my credit card was additionally charged US $ 35,98 after I checked out (03/21). I frankly wonder for a what additional service I was charged.
I mailed my complaint directly to hotel manager and to Hilton Hotel chain customer service month ago and still didn't recieve any answer.