Bad service from a service provider no contact

I upgraded my contract to take effect 1 June 2015 , while checking all was done correctly I noted I have been overcharged for DATA !!! I called in beginning of June to check if upgrade effected the data but could not get any answer from the all the department - 10 Calls from me. ZERO reply from Autopage, Joe from upgrade after many calls logged a request to accounts Dep but I still have had no response. Reff # 727048 I never had one call from anyone at Autopage to resolve the issue and have constantly been told that the managers are in a meeting and they can not take my call ( poor Management) My total overcharge is now in the range of R 5000 from April and no attempt to expedite the issue has been made . <br> On 19 May Autopage cut off my line for no reason for the whole day, while I was on a business trip and only reconnected that evening I got a SMS on 22nd to apologise about the technical error and not one person could explain why this happened I can not calculate the amount of problems and loss that this caused myself and my business. I would like to port my number to a new service provider so that Autopage can carry on with the more important meeting that the mangers have.<br> HELP