Empty Promises And Bad Client Experience

It all started with Vodacom's empty promise of certain "Black Friday Deals" that they advertised on their online website. I placed an order for a special they ran for a Samsung Galaxy S20 FE device with Samsung S20 FE Standing cover and Galaxy Active Watch for an amount of R499 p/m. I placed my order on 10 Nov 2020 online and got the confirmation that did not show the watch, but did show the rest, whereby I informed the person that phoned me the next day to confirm my order, that there was something short, which was the watch. The lady then informed me that I don't have to worry, because it would be included in my delivery. Well this was not the case when I received the order x3 days later, where there was only the phone and the free standing cover in there. Here after I immediately phoned the online order team whereby I was instructed that the order according to them was delivered correctly, but it was not, because there was no smart watch like I ordered with it. Well then I got informed that I need to return the order and they will process a credit and create a new order for the correct items as requested, this never happened. It's now been almost a month later and no one has phoned me back to place a new order and the offer that I required has never been up again. So now my question is, what to do now? I require my order like I originally specified, because this was the way I ordered it and it was not delivered to me correctly. I've been a very loyal customer of Vodacom now for more than 10 years, but maybe it's time to consider using a different service provider.