A complaint about MTN

MTN took my money

I have a contract with MTN.i bought 2 phones which are Samsung S22 and I pay R650P.M and Samsung A23 which goes together with the Samsung S22 I just had to only add R50 P.M. I get 100 minutes and data on the Samsung S22 and on the Samsung A23 I get R65 Airtime. My problem now is that since February they started deducted R800 instead of R700. So, when I inquired about why they are deducting R800 they said to me it’s because they give me 100 minutes on the Samsung A23 which they didn’t have my consent to do so. This is not what we had agreed on, they took the decision themselves without my knowledge and now I’m being charged more than what I’m supposed to be paying.

I want my money back or otherwise I’m cancelling my contract with them. This is *****.

Please help me hello Peter