WORST SERVICE!!!

This is the worst service i have received from vodacom in a wile, my one contract was almost due for an upgrade and i upgraded a month earlier than the 3 months that you can and they added that small amount penalty for that but now after i ''UGRADED'' they never upgraded me they just added the new contract on my name so for 2 months now a have been paying for an added contract that is R600 per month. I phoned the vodacom shop for help and they said the accounts department will call me back that never happened. After having 5 contracts with them i am rethinking of carrying on with vodacom.