Blue Label Telecoms ****ming me through the RCS account on a monthly basis

Blue Label Telecom is *****ulently debiting money from the monthly repayment which I am making to RCS account (Makro) since July 2025 to date. The company claims that I have subscribed to a voucher that they debit R179 per month for, and I did not subscribe for such. I requested for proof of "my subscription" which they are unable to produce. They refuse to refund all the money that they have been ****ming me of. Please assist!