I sold my piano to a piano dealer on EBay. he paid cash on collection but in the process of moving the piano down the stairs he damaged 3 steps on the communal stairwell while shifting the piano downstairs.. He refused to pay for the damages and would only pay the money agreed upon earlier on the piano. I let him drive off as I realise I would be stuck with a piano downstairs that I cannot move back up myself without paying for a piano mover to do it for me, plus I will still be left with the damaged stairs. We live in a block of converted flats (used to be a huge mansion) all owned by the same landlord. Will I lose my deposit when I move out next month? I don't know if there is any way I can pursue him for damages.