IRL, if another gang threatens me, I can go to the first I paid protection for, and usually they try to convince the other gang that, no, they should not do that.
Why not? Wouldn't you be able to forward contact info from one group to another?
A bitcoin address does not give that much information about who wants to get paid.
Ransomware hackers have call centers to teach people how to buy bitcoin. I'd suspect groups involved in this kind of scam would have something similar, isn't it?