Gross Overcharging

I have been trying for months to sort my Autopage account as they are STILL overcharging me months into my new contract. The man who emailed me from Autopage has given me bad attitude and isn't being too helpful in sorting my problem. I insisted that Autopage credit my account and pay my money back into my account. They have had excuses as to why this has not been done. I am fed up with Autopage and their lack of care. I have also given them my new postal address a few times and this has not been updated on my account yet.