Service and billing

I have had an MTN account (contract) for years. This particular one was for my daughter. My bills have changed since Nashua (I got automatically ported to MTN) my bill has increased by R200.00. She is never able to make calls, she receives the error message that she has insufficient funds. She makes sure she always has airtime incase of an emergency. 5 weeks ago she was ****** and was trying to make a call but could not because the network said she had insufficient funds. Having checked her phone personally her balance read R174.89. Now she is unable to buy data with airtime she purchased as it says insufficient funds. This contract is due for upgrade and I went to the BEDFORDVIEW BRANCH only to be told I may not cancel it in store unless I cancelling and upgrading and I will need to go to head office. This contract has been cancelled immediately and my number will be ported to a different network as I for one cannot deal with incompetency and inefficiency when it is at my expense. <br> The I.D number is *** and cell is ***.<br> i just want to express my disappointment with MTN and how they actually handle their customers and their issues. its an absolute disgrace.<br>