Unauthorised upgrade

I have 2 contracts with Cell C for my children. After numerious calls a call agent phoned my daughter again <br> on 17/12/2014 and told her contract was due for upgrade. She told them that she is my daughter, she doesn't have my ID no and I am on holiday. YET they proceeded to let her do the upgrade. They know that legally I'm the only person that can upgrade and should have ended the call there and then, but apparently they are so desperate for sales that they KNOWLINGLY acted against the law!! I phoned pre-legal department, but I must get an affadavid etc before they would look into the matter. Why are calls recorded and why would they not listen to the tapes before sending the client around for police statements etc???? It is your staff that proceeded *******ly with the upgrade, but now it becomes my problem. This is just not acceptable and I can't believe the cheek off staff to proceed with an upgrade when they now that they are not speaking to the contract holder! Are they not trained, are they desperate or just plain don't care?? I want this sorted out and are so disgusted of Cell C's way of doing business that I will never ever do business with you again!!<br>