Incorrect billing

I have been a Nashua mobile client.My account has been moved to Autopage .Since December 2014 they started to bill me incorrect.I went into the branc in December 2014 to report this and they said they will investigate it.By the end of January 2015 they deducted R1200 and I went into the branch again.They took all my details again and said they will get back to me.<br> <br> I foned Nasoogah on 12 February 2015 and she said she will get back to me on Monday 16 Feb 2015 but until now she never got backe to me.I have fone the branch the whole week but there is no answer at the branch.These wrong amount that has been deducted from my account is having a huge impact on my personal life due to tghe fact that I have a family to look after as well as otheer comitments and these amounts that they deduct from my account is not bufgeted for.They are also going to deduct another R1000 at the end of Feb from my account.My premie must be R389 per month.