I wanted to take my elderly mother on a calm cruise as a cruise was on her bucket list. When I boarded the ship I ask if I could rent a wheelchair for my mother I was declined do to the face I did not make arrangements when I booked the reservation. I didn’t think we would need one 3 mo prior to the trip. I was spoken to TERRiBLE by the security personal. After we boarded the ship an after a 2 hour wait to get in our room I was told it was mandatory we attend the safety drill procedure. I could not take my elderly mom there with walking disability down the stairs so I had her stay in the room while I attended.. My mother there has Dementia also. When I returned to the room my mother was not there. I went to the hallway an ask the cabin Stew Ricardo if he had seen my mother.? Ricardo stated he went into the room (I assume to clean as it was not very clean when we arrived) an he saw he sitting on the bed with a blanket. Ricardo then said she said she was hungry then she left the room. I told him I needed to find her she has dementia. I looked through halls of our floor an I found her safe an sound. I was then paged by the security personal. I went to guest services an was invited to an office of the security personal. The female security officer and the male officer spoke to me HORRIBLE!!!!!! The female officer stated the cabin stew stated he found my mother in the room wrapped in a blanket laying under the bed. Complete total LIE. First of all my mother would not b able to get on the floor much less under the bed. Second, ileven if that were true...why would he leave her there?.,I told them that was impossible!!! They then told me the cruise line was never t responsible for my mother and I was not to leave her alone. I told them I would not have left her alone had it not been for their safety procedure an the caregiver who was suppose to be on the trip with us had cancelled the day before., I was shocked humiliated over they way I was treated. Also I ask guest services if I could rent a wheelchair was declined from for the ship and also declined for shore excursions an just walking in the towns when we docked so our entire trip was spent on the ship except for one day we left the ship for Halifax an I thought maybe I could rent a cab. My mother had a very difficult time even walking down the ramp to the port. A very nice man who works for Hop on Hop off ask if we needed anything I explained I wanted my mother to tour the city was unless we hired a cab it wasn’t going to work out. He said if we wanted to take the Hop on Hop off they would help me get her on an off. We did do that an we just stayed on the bus but at least she was able to see the city. This was the only time during this vacation someone treated my mother with kindness and respect. I feel my mother was discriminated against several times by the Cruise Line an will never take another Royal Caribbean Cruise again. Your cruise line should be ashamed.