Time wasters

I signed up for 20gig data SIM card for R150 monthly payment and they delivered two SIM cards.when I called and asked why two SIM cards, I was told that's what I ordered according to their system,I asked they play back the telephone conversation but for time being I would like them to cancel one extra SIM card, they told me they can't cancel one; they can only cancel the whole package and they will debit amount equivalent to the data i used.

Month end of February I was shocked to see them debiting R500+ but I asked my bank to reverse it.this month end of March again they debited R600+and I reversed it again.

If this doesn't stop I will further expose them to all social platforms, radio talk shows,NCR, consumer's rights etc...