My ISP (Hotwire) randomly added a $1 monthly fee for mailing a statement and took multiple months to stop charging the fee after I complained and they kept prom

My ISP (Hotwire) randomly added a $1 monthly fee for mailing a statement and took multiple months to stop charging the fee after I complained and they kept promising to refund the most recent month or two but I'd have to call back and complain again after a month just to try to get justice. The customer service reps would literally tell me they could only authorize a $1 refund. $2 was "too much" and required all kinds of manager approval and there was never a manager available...