Paying for an iphone I do not have!

I refer to my complaint posted 7/2/15. Vodacom (Elroy Brickles) responded with an apology & part discount on 1 month of my subscription which is appreciated. However I was advised my OBF claim was successful and the store received its credit 13/1/15! I was also informed stock was received by the store since 13/1/15 but I was not allocated a device. Thus the problem has not be solved as I still do not have a device. No-one is able to estimate when I may receive it. I would like to cancel my contract on the basis of breach by non-performance on the part of Vodacom. I entered into a contract on 20/12/14 for an iphone 6 & Vodacom has dishonoured the contract by not supplying one to me! The stock problem is no longer a valid excuse as it is 2 months gone now and still counting! This is very disappointing as I have been a customer for over a decade. I would rather do business with another supplier. <br>