If he isn't responding to you now, he won't. He either fixes things for people, or completely ignores him. I have no idea why. You have already made it known on this board that he won't fix your problem, now make it even worse for him. Put in a complaint through the Better Business Bureau,
https://www.bbb.org/consumer-complai...nt/get-started. It's very quick and simple to fill in the questions. He still won't correct your problem, but when he doesn't, his BBB's rating goes down. People need to know what they are getting into when dealing with Fragalot.