3 WEEKS LATER PROBLEM STILL NOT SOLVED!!!!!!!!

I am still battling to get the problem sorted out as per my previous review andf communication with Phindile. I was give the RMA Number and advised to go to the closest MTN direct store to do an early upgrade and they will waiver the costs. I did this today and was told that MTN cannot do an early upgrade until Mondo cancels the contract. I was advised that there would not be any problems as this was my biggest concern that I would be pushed from pillar to post AGAIN!! Please can you contact me URGENTLY. This has been going on for almost 3 weeks now. It is NOT my problem or fault that a faulty handset was delivered to me. It was returned to MTN the very next day. I have also been billed for the new upgrade which is due 2 April and I don't even have the handset. I would like this reversed as I AM NOT paying for something I do not have. I would appreciate Phindile or someone who can get this sorted out once and for all!!!