I get phone calls for a guy named Randy about his business. I can’t for the life of me figure out how to make the phone calls stop.

The simplest solution is to change my phone number. But

a) why should I have to? it’s my number, dammit!

b) how many accounts have 2FA? if I changed my number, what if I miss updating one that’s important?

c) it could happen again

If I change my number, however, that is the simplest way to solve the problem. It’s just, do I want to?

We managed to get given a drug dealer's former landline, and had to get it changed after strange calls in the middle of the night. Then our neighbours got the same number after about a year and had the same issue.