Incompetent powder coaters

Thanks guys. I think that getting it recut maybe the best option if I can find a bike shop local'ish that can do it. Can I have the thread recut to English thread rather than French?

No. They will just chase the existing threads, not cut new ones. You'd need to ream out the old ones, fit a sleeve to the shell, and then thread afresh to change to english. Major pain in the arse.