Vodacom Penalty for not paying.... But Debit in place and not going off.

So. Did an upgrade 2 months ago. As usual you go into a store and your details are confirmed. You choose a package and it get approved and you walk out with a new phone. Great.!! Then you wait for month end for your debit to go off your banking account, but it doesn't, you follow up with accounts, you go to the store where you did the upgrade but still your debit doesn't go through. You go to the store 5 times to just pay your account. You are told that there is a debit arranged on your account just wait for the debit. Still the debit doesn't go through. You eventually pay the account in the store. You get a notification via mail and SMS that your payment hasn't been made and that a penalty fee is loaded on your account. Still trying to sort out the debit. Then the next month your pay manual eft as the debit still didn't go off. Just to receive a threat email that services will be cancelled if you don't pay the penalty. Phone the accounts department and suddenly the penalty has increased to almost 3 time the amount it was. Accounts tell you there is a debit arrangement in place. However, it still doesn't go off your account automatically. When you get frustrated about being adamant in not going to pay the penalty due to fault. Then get hanged up. So, what is the process worth if you cannot sort out the account in a store where they refer you to account via your own phone-might I say.... OMBUDS???