Application for Vodacom ONLINE contract a nightmare

I app**** online with vodacom a new contract, the huawei Y7. This application was processed and approved on the 10th December 2018 as per sms. I called to confirm this information, and was put through from one department to the next. I was given a tracking number, for the company RAM couriers. Called ram with this information, even used the online tracking service on RAM website, only to find out that my order has not been dispatched by Vodacom as yet, yet Vodacom confirmed that the order will be released and delivered to my work address and is with the courier partner. I am not sure what is going on because none of this rings true. Vodacom then goes on to inform me afterwards that the device is on back order. Why was i not told that there was no stock, Instead Vodacom confirmed my order dispatch on the 11th December. Please help and resolve. Regards