Telkom

I have been a Telkom customer for the past 10 years and from last month, they have been charging me extra for my monthly contract. I went in store and they informed me they mistakenly added a subscription when renewing my contract and my money will be refunded. However, a day later Telkom calls me and informs me I subscribed to “ something” and until now they cannot inform me what it is. I did not subscribe to anything and I do not use the Telkom app at all. They are refusing to refund the amount and is insisting I subscribed to something. Their customer service is unsatisfactory and very disappointing.