Trying to sort out my account since Feb 2014!

Absolutely dreadful service - their accounts is in a shambles! I've been overcharged and I have an e-mail stating that there is a credit due to me, yet every time my statement arrives it is incorrect. I have spent hours on the phone and no luck - every time I'm told we'll sort it out in the next 48 hours, or the manager is personally dealing with this. Well, you know what? Nothing's been done - I've been trying to get my account rectified since February 2014 - that's almost 2 years! What more do I have to do!!<br> <br> Not surprisingly, I cancelled my contract more than a year ago as I simply couldn't deal with the incompetence any longer. Little did I know that nothing was going to change - as an ex-client I'm still dealing with the same incompetence. I do suspect that I'm one of a long line of clients with billing issues. All I want is for the credit to be app**** and for a correct statement to be sent to me. And heaven help me if I've been branded a \slow payer"with any of the credit bureaus as a result of their inefficiencies. <br> <br> Chubb"