Disgusted @ Telkom

I am highly disgusted by the service i got from telkom clientelle the past 10 months . They debitted my account with R1034.80 in october 2017 and in november 2017 when i complaint , they said they busy working on the case and money will be refunded within 7 - 14 working days. And ever since then i have been making several calls every single month and all they could say that money was accredited for the case and asked my banking details. I am still waiting. How will i be compensated for all the (10 )months . They have been consistent every month by taking my money and if im late they take interest. Will i get interest for MY OWN money that they took out of my account without my permission or warning. Please Help!