In the past, I've asked for a 100% refund of fees before filing a complaint with the association and have received back 50%. You may want to go that route.

Literally just one fax. They want to avoid any complaints on their record, especially valid ones.

Put the info in a shoebox and weight the statute of limitations. I've seen a start-up sue its lawyers and sadly that was the main way they generated revenue that quarter.

Of course your choice to make but I would fight them.