Mostly people just need stop sending them money they will run out and after a while of not turning a profit they will go elsewhere to make said money. Everytime someone pays them they just feed them spam money.

Last month I wrote Wallet Spam And Phishing Attempts Seem On The Rise on my thoughts of allowing the users to set their own wallet fees as well as allowing people to create a whitelist so legit usues for that user did not have to meet that threshold with that user.