AgainI have to disagree you pay the broker then stop doing business with them.. Is the commission on one deal worth possibly ruining your reputation its bad business. Pay them and then cut ties. I wouldn't want someone to be able to come on a forum like this a talk how they were not paid on a renewal because the bank cheated them.. You choose who you work with, if you made a mistake by doing business with an ISO pay the commission and try not to make the same mistake in the future.. Maybe you need to look at the process you use to sign up ISOS if you are having problems like this