Upgrade gone wrong

I upgraded our home package to uncapped which made sense when the telesales man sold it to us only did we know we were inviting trouble in our lives. There is an inconsistency between Telkom stores and telesales, instead of an upgrade and cancelling the old account they gave us TWO accounts. We also discussed changing ownership only to find out the store can only change after three months. We have been billed R1 400 whereas the contract was R199 and the new being R899. Somebody fix this before I cancel this inconvenience of a contract