Complete Lack of concern to assist

In May 2015, my bill shot up by almost R3000 and continued to increase over the past 3 months, with one bill being almost R4500 I usually only pay R700. In May I contacted Autopage to investigate and was told my data bundle was not successfully migrated which caused the increase as it was all only on data charges. The same thing occured in June & in July. I have contacted Autopage on so many occasions to invesatge this, that it is now actually a joke. No one reverts back to me, or tries to fix the problem. apparently it is easily done - as the tech department just needs to look into it. So every 3 days, they disconnect my line, I email into services@ autopage and my requests are simply closed on the system, I then call in, or visit a store explain the situation to a new person and my line is reconnected, only to be disconnected again. This has been going on for 3 months, and my bill is now almost R10 000, no matter how many times I contact autopage to try to fix this, they simply ignore me, people promise to come back to me and never do, when I ask to speak to a manager, they say one will call me and no one ever does, and my bill jut gets higher, and its now effecting my job. thnx