PATHETIC CUSTOMER SERVICE TO A LIFETIME CUSTOMER!!

I had app**** for an upgrade with MTN within seven days after delivery of a gadget that was an ipad. I decide to cancel the contract called 808 number was asked to take it to any near by MTN store which is clearwater for me. The lady who took the gadget did not update anyting on the remarks and the sad part I am the one suffering due to their incompetence, went back to MTN store to query the lady was not there another lady from Mtn called her cause she was off sick she promised to call back when she comes back no call until my phone was suspended. How do they expect me to pay for services I did not utilise??