Over charging

I recently hired a car from 1car1 and was unfortunate enough to get a flat tyre. I rang the recovery number and was given the number for the AA and told it would cost me £84. The AA were fantastic but were surprised when i mentioned the charge - apparently they have an agreement which covers all new Vauxhall vehicles. When i got home the £84 had immediately been charged to my credit card so i rang the AA to check... again i was told there was no charge to me or the hire company. After many phone calls i have finally been told that i will receive a refund (takes 4days!).... but what about all the other customers who have been charged? - 1car1 did not seem interested in looking into this...