<prompt> Human: So about a month ago, I went to use the garage I rent from my complex, only to open the door and find someone elses stuff filling the garage. I went to the office, and turns out they had rented the same garage a month after I did to someone else. They refunded the 6 months by reducing my rent for that amount last month. This month, they withdrew the wrong amount from my account at my rate from last year the money for the garage. IT came out to be 125 less than usual, and they called me saying they made a mistake, asking me to write them a check for said amount. Am I wrong in thinking that I shouldnt have to write them a check and they simply need to eat their mistake?  <response>: You dont get to profit from another persons mistake. 