Hoteles Courtyard en Manchester

So, a month ago I made reservations to stay at a Springhill suites Marriott. When I got there, the front desk personnel told me that they were booked and did not have any rooms left. The person at the front desk told me that they apologize for the inconvenience and would find another Marriott for me to stay at for the evening. No problem, I know mistakes happen. The person at the front desk told me that they contacted the courtyard Marriott, which is nearby and that I could stay there. I told them that I had used my 25,000 point certificate that I receive annually to pay for my room. They said that it would be no problem, and they would refund everything and for me to rebook the reservation on their app, at the Courtyard Marriott immediately. I did so and drove to that Marriott. When I arrived, I told them at the front desk that I was sent over from the Springhill suites and that I made another reservation using my certificate. They said it was no problem at all and that they have my reservation for the evening. The next morning I handed in my keys and the front desk person told me I was all set and I received my receipt for No Charges. A month later, today, I get an alert on my phone that I was charged $184 from the courtyard Marriott! I called over to the Marriott and told them that my card was fraudulently charged from them today. The lady told me that, the “Discover” card that “I” used was fraudulent, so they charged my Marriott credit card for the full price of the room. I explained to them that I have never held or used a Discover card in my life. Someone at their front desk must've made a mistake. She then went on to tell me that she called some woman who owns this supposed Discover card and that it was a fraudulent charge, and they would indeed keep the $184 charge on my card. I explained to her again, that I have never owned a Discover card and I used my annual free stay 25000 point certificate to cover my room last month. She then changed her story and told me that her hotel was having problems getting the money for the room, using the Marriott certificate that I used, and their policy is to charge me full price for the room since they are having problems getting compensated for my 25,000 point certificate. I then told her that she is not authorized to charge my card a month later. I used the Marriott reservation system, using my certificate to book that room and it is her responsibility, not mine to get compensated for it. She told me that she refuses to reverse the charge and once I swiped my Marriott credit card for incidentals, they can charge it anytime I want for anything, including damages to the room. The lady at the courtyard then proceeded to tell me because I showed up at 2 AM from the other hotel that she is personally flagging me as fraud! I have been a Marriott credit card holder for over 20 years with over 900 nights logged. At this point, I was furious, and demanded to speak with a manager. She told me that she is the ma