Bad service on contracts for the visually impaired

I am writing on behalf of persons who are visually impaired and took out contracts at Autopage Worcester. We have been struggling for a few months now to get Autopage to rectify the situation where nearly double the contracted amounts have been deducted on these accounts. These persons do not earn a big salary and cannot afford this to continue. We have been promised that refunds for overpayment will be forthcoming but nothing is happening. We are now planning to arrange a march to the shop so that they can explain to the blind persons why they are being treated in this way. The blame is always placed squarely on the shoulders of Head Office. We demand immediate action before the end of this week otherwise we will have to take everyone to their offices to state their cases personally. We are waiting on your urgent response!!