Disney+ added with no consent

I've recently noticed a spike in my monthly premium for DSTV. I haven't contacted DSTV to add anything to my account so I called the contact centre and spent all my airtime holding for an eternity before somebody answered and told me Disney+ has been added to my subscription. I've had a subscription with Disney+ directly since they launched in SA and DSTV just added another subscription without my consent and now refuse to refund my money. I was then told I'd receive a refund within 3 working days and I've still received nothing. I then logged on and contacted DSTV via the chat function and 2 agents later, I was told the refund was never processed and I'm not getting my money back. The first agent just stopped chatting and somebody new came online. The service is absolutely atrocious, not only am I being billed for something I never asked for but now DSTV refuses to give my money back. I need a refund, not a credit!!!