Pathetic service from Telkom Pav

I went in to the telkom store 3 months ago to uprgade my cellphone contract. They did not have stock of the device in the colour I wanted so the sales assistant said to fill in the forms and as it would speed up the process ans I could come in and collect the device on my next visit and she assured me the forms would not be processed until then. To my surprise it was processed at the end of that month and I was being charged R1500 for a device i did not receive!!!! I have been charged R750 for two consecutive months after this as this issue is not being resolved. I have been paying R3000 for a device I NEVER RECEIVED!!! i have been to the Pavillion store 5 times and made numerous calls to Telkom and the problem is still not solved, they keep saying the issue is being escalated will be resolved soon. The service at Telkom especially your PAVILLION branch is PATHETIC!!! Telkom is the most unprofessional and inefficient networ****!