There is a bookshop local-ish to me I occasionally ring, usually as part of my job, sometimes for myself. In the last couple of months or so their phone has been unanswered every time.
I have rung at times when the store is supposed to be open, and I've tried withholding the number. I can't find anything online about a new number or the store being closed. Can anyone come up with an explanation other than just really bad luck?