Upgrade Charges

I recently upgraded my Telkom Mobile early in July. I received my first invoice after the upgrade about 2 weeks ago and got a hell of a shock. I have a device carryover fee of R 4 792!! When my upgrade was done the consultant never mentioned this to me and only said that I will be charged my monthly fee and pro rata because I received the device mid July (which is obviously understandable). After numerous attemps trying to sort this out and phoning multiple Telkom dialing numbers with nobody who can assist me, calling back and forth to finally hear that an email needs to be send to the escalations department for investigation and that it takes 48hours. It has been 2 weeks now and I have send my query 3 times due to no response other than and automated response. My Telkom bill is due in 2 days and this has still not been sorted out. This is unacceptable!!