Dupped into contract that I did not agree to by MTN

MTN is sharing our information to sister company to give unsuspecting customers phone contract they don't need.. I had a number dt belonged to my late mom. Later I learned some one was using it. I was advised to take a cheaper contract to save the number. I was not even using data on it bcs I have number of contracts that I am paying.. One Indian lady kept calling me to tell me that they can give far cheaper contract than what I have. Only to find out that they changed my contract to 3yr contact. I only learned that contract was even high. I called MTN to try to sort this out but failed to get solution. Now the number was long blocked and they keep adding charges on the number dt is in their position of which I have never used at all. If there is any justice at all MTN must give back my number and take responsibility that the flopped to share my information without my permission. This popi Act is for who exactly?? I am beyond board and disappointed of how Big companies in SÅ have no respect for people's info and expose us to ****mers. Yes I have been ****med, period.