Vodacom stole money out of my bank account.

Long story short. I got a Samsung watch trough Vodacom. The watch was faulty out of the box, and had the same issue as a previous version of the watch. I Insisted on a dealer cancellation, so that I don't get charge at all and they take the device back. I was informed that I would not be charge. A month later Vodacom stole money out of my bank account. It is been about 3 months now and I have still not receive my money back. I kept on requesting the money back, and every time they say the money will be paid back, but then they don't then i have to create another ticket over and over. I finally went to the NCC and through the NCC they stated that the money will be paid in 7 working days. It is more than 10 working days and I still don't have my money back. So i reach out to NCC again and now I'm waiting for them to get back to me.