Bike selling de-association. Bike in my name which was sold.

I know it's a different sort of an issue. However, I hope you will be able to fix it. I made a purchase for a bike which I bought 2019 which I sold to a shop which sells bikes in 2020. It was sold for 24k with sell letter and paper. I was told that it will be sold within a month and you will be fine. I was 22 back then therefore I thought this is how selling works. The issue is that bike is still my name and I do want it to be associated and neither I exactly remember the that bike dealer shop.