TELKOM RAIN DOUBLE CHARGES AND NEVER FIXES ACCOUNT

Upgraded my TELKOM RAIN to get the new modem with the new Skins and took their new package with it for extra sims. Problem is they are billing me for it as well as the OLD PACKAGE. I have called and been sent from Pillar to post to try and Get this sorted - I HAVE NOT EVEN USED THE NEW SIM CARDS, so I am at a loss there too, as any calls and data on there have probably expired. No one seems to be able to assist me and fix up the account. They owe me alot of money as they are basically double billing.It has been going on for months and I get no joy, Each person says, Ill transfer your call and then I get cut off, I have emailed as well, still get zero assistance