Dishonesty when upgrading my 2 contract.

I upgraded my two contracts about a month ago via Mr Estridge. no mention to any impact on existing contracts which had both more than R1500 airtime on it. Once I received it I used the Mtn app and saw that it was indicated as expiry airtime value. I then enquire from Mr Estridge who has been offering any excuse possible including management looking into it but no response. <br> <br> I certainly would not upgrade my contracts and there by throwing more than R3000 in the water. Not only must this lack of clarification addressed and I be compensated in some or other way but Mr Estridge constant ducking must be investigated