Showmax subscription on Telkom account

I tried to add Showmax to my Telkom account, but never received a Voucher number to activate it. I tried a few times but could never get it activated. Only to be billed by Telkom for 8 subscriptions. I queried it via email, and a returned email said that my query will be attended by the relevant department. Telkom has deducted these 8 subscriptions now twice from my bank account. After inquiring about this again, I was told to contact Showmax. I did, and they said these subscriptions was never activated. Now, Telkom says that they can not refund me, as it was my own fault. I registered the subscriptions. So now I have paid for something that I never got and Telkom just shifts the blame, but they took my money.