Bad attitude and placed me on hold

Over the period of 9years I had maybe 20-30 contracts/upgrades with MTN and now am thinking of moving to another service provider due to the poor service and bad attitude I received from the ladies at the call center and cancelling contracts which are coming to an end., This morning I called and queried about my numbers and after verifying my account twice with two different ladies, the first one just transferred me to another lady while I was talking to her, and I was upset. The second lady had a bad attitude and unsure if she is allowed to give me a list of my numbers after verifying am the account holder and when I asked to speak to the manager she placed me on hold. After waiting so long on hold we still got to deal with amateurs who are unaware of their job description. Every month without fail we being debited but when come to customer services I feel the after services are terrible. Every month am being debited atleast R6000 per month I think am just 1 customer and MTN doesn't really care how 1 customer feels.