Hotel Mj Kingsway, Cleethorpes Seafront

I booked this place twice through two different booking platforms including OYO only to have booking cancelled by the owners the owners without a satisfactory explanation. It’s a totally unacceptable unprofessional hotel to let down customers in such a way

Booked online and on the phone for a disabled room for 2 people, was told they could accommodate us. When we arrived we were told that our room was on the first floor, upstairs, which was not suitable at all. My partner suffers from Multiple Sclerosis and uses a wheelchair, which I informed them of when the booking was taken. For the next four hours, we were kept dangling on the phone with 'head office' trying to resolve the double booking error they had made, as the in house staff aren't allowed to think or act independently. This finished with us being told 'we will refund your money in 3-5 working days, nothing more we are willing to do, tough luck'. By this time the last train to Doncaster (home) had already left Cleethorpes and we were stranded and £100 down. I would not recommend this hotel company to any disabled customers as their customer service is none exsistant. I can not even raise this issue further as there is no way to contact OYO directly and they refuse to co-operate with 3rd party intermediaries. Now I know why. There is no way to raise a complaint with them at all. Disgraceful discrimination from a bogus company operating outside inclusivity laws, without repercussions. Can anyone help me take it further? Thank heavens for the Premier Inn, who went above and beyond for a mistake they didn't make.