Harrassment from nimble group

Now im very much convinced that nimble calls people deliberately to annoy them. I've been going back and forth on calls explaining myself that i have no business with with them even providing them with proof and still today i receive calls about something that has nothing to do with them and me. My query has been escalated moe than three times and still get calls. Whats irritating is that i deal with clients so when i miss a call i have to call back only to find its nimble. They waste my time, airtime and data going back and forth. the boring part is that their call is related to an account closed by another company last year Sep and they started contacting me in march 2025.... imagine how outdated their information is. This is very wrong, unprefessional, annoying, irritating and harrassment and seeks legal attention as it slowly looks like they want to commit ***** by making me pay for an account already settled.