How about the opposite? A company I turned down a job offer for has been contacting me every about every three months asking if I had changed my mind. I just

How about the opposite? A company I turned down a job offer for has been contacting me every about every three months asking if I had changed my mind. I just recently told them to please stop contacting me and I'll contact them if I change my mind in the future. It felt a bit assholish asking them to stop contacting me like that, but I can't decide if that's just my personality having difficulty with it or if there was a better of way of telling them "No".