Axxess Overbilling Clients

I very rarely complain because I always want to give the company the benefit of the doubt but I think this could be affecting the whole customer base. Axxess and other ISP's I have deal with being double billed. The system bugs and creates a double of my account then double bills me. Even though I contacted them and they deleted the account and sent me another invoice today I got billed the double amount and the double account had been re created. There must be many customers with debit order who might not realise they are being double billed because of this flaw in the system which has been there so long that I believe it's intentional. I'm requesting reports from the company that they review and fix this for all customers or I will have to go to newspapers and consult the consumer protection act as this is one of the highest forms of consumer abuse.