Complaint

I have been trying to get hold of MTN for over a month now on 135,I have transferred to contract,retention and with no assurance the phone will cut in the middle of our conversation and I had to call again and again and each call I will wait for 30- 45 minutes before I can talk to a consultant during the call it's either there will be a silence until the call it's been stoped or it will just drop from no where.i am heart is so paining I had to pay for the service that I am not using and when I want to cancel the contract I am been send from pillar to post with no assistance,and yet again I have to pay for early termination of the contract where else is not my problem that the sim card that they gave me before lock down was not registered. MTN you are failing us,all I want is for my contract to be cancelled and not pay the early termination fee,is not my problem that your product did not service me.why can't the business take a full responsibility for they are own mistakes?are we to pay for the business's mistake?