Vodacom online update frustration.

A warning on agreeing to a contract online. On the 26 Aug I updated my Vodacom data contract which included a tablet. The tablet has never been delivered and after many phone calls and wasted hour, and being referred from one dept to another I am still no closer to finding out why the tablet was not delivered or who is actually responsible for delivering it. I am promised it will be investigated and Vodacom will get back to me and this also does not happen. Rather go instore and deal with someone face to face.