Extra charges

on 25 November 2015 I migrated my data from 10 Gig to 20Gig and I was assisted by Tebogo who explained everything to me. He said I will be charged for extra data for 3 remaining days. I was fine with it. Then he said I won't be penalized for migrating. ever since Telkom has been charging me more on the invoice and when I call I don't get any help but a new case number. here are all the case no: ***5 which was closed without solving the billing issue. Another call was logged on 3 February 2016 and they updated their system with lies claiming the called me and the billing issue was solved. March invoice had extra billing and again i was given a new ***. evrytime i conatct the call center they promise to call me but they don't. <br> <br> I am tired of calling Telkom because all they know is issues case number without solving the previous ones. All i need my money to be credited.