Worst service ever!!!!!!

For almost a year debit orders for a cancelled cell contract are still being put on my dad's bank account. The subscription changed each month. He is a pensioner. They opened a ***** case cause data & airtime was added without his knowledge. Have a case nr as well. Why is Telkom NOT ****** STOPPING THE DEBIT ORDER!!!!! THEY RUINING DAD'S CREDIT PROFILE WITH DEBIT ORDER OF OVER R3000 MONTHLY. I WANT IT CANCELLED AND MY DAD'S NAME CLEARED!!!! Branches are closed in Pta North and when they were open no one helped. Damn, there has got to be a way to get helped with this issue,!!!