****ed off & unhappy client

I am absolutely appalled with the service I am receiving from Cell C. I upgraded my contract last week Monday and everything was approved. The lady in the retention dept told me that I should receive my upgraded cellphone within 3 - 7 working days. Yesterday I took the liberty in calling to follow up on my upgrade and was only then told that Cell C does not have stock of the device I want. Could this not be communicated to me either via email or sms. Why should I be the one calling to follow up on this. This is not the first time that I am receiving such *** customer service from Cell C despite me being a client for many years. Either offer me a different handset on the same package or sort this **** out today.

I am seriously considering cancelling everything and taking my business elsewhere.