@dccox55 years ago when my uncle opened up a business, we asked the phone company for a phone number that was reasonably easy to remember.
the phone number was recycled, and the previous owner had collections agencies after them.
they started calling us multiple times a month, demanding very rudely to speak to X person, we would tell them there's no one by that name here, and after a while we clued in that this wasn't someone asking for a non-existent employee, it was someone trying to call a residence.
we told them "we're a business, no one here by that name" and hang up, after about the 5th time I called them. and explained to them that "you guys keep calling us, we know who you are, we've been patient with you, but Im telling you, the phone number is recycled, we're a business, and X isn't at this number, sorry" and they would just tell me to go fuck myself , to drop the act, and to put X on the phone. This happened at least twice, we eventually went to the Lawyers. We were a business in Eastern Canada and it was a collections agency based out of Western Canada that we traced the number to, We had a Cease and desist sent over and they even violated that
eventually it did stop however. I think they gave up. or perhaps something more serious happened, I never did hear the end to the story because the calls just stopped coming, and I eventually stopped working there