Still no feedback

I wrote a complaint about incorrect billing on the 17th August 2015 and I still haven't received any feedback as to what's going on ? I have still tried calling and spoken to numerous people and no one can give me answers ? I really don't understand how it's so difficult for you guys to solve problems ? This debit order is going off tomorrow and I'm forced to go to lawyers if the incorrect amount is billed off my account as well as have all the money returned for the ipad for the contract that was cancelled. This has been the worst experience I've had with you guys and am super disappointed with how this has been handled and the level of incompetence that's been shown to be. So not fair.