Eight weeks ago, I traded my car in for a 2017 Honda Jazz. I've just noticed that the paint on the front wing looks slightly different than the rest of the car. On closer inspection I also found a strip of masking tape adjacent to the door hinge. I have been able to contact the previous owner due to service receipts left in the car, and they informed me that the car had been involved in a collision with a bus. I was told that it had been repaired at the same main dealer that I purchased it from so they were fully aware of the previous damage. Would I be within my rights to demand a full refund?