Misleading and false advertising

I ordered a cellphone online to the value of R16.500 on the 29 October 2022 and was advised that I will receive it within 21 days. Every week since then I have been calling and asking why my tracking info has not updated and every agent I spoke to advised that they are still within the SLA and I will receive my phone on day 21. On day 21 the 28 November I had contacted to find them to find out when my phone will be delivered and I was told that they do not have stock their supplier is out of stock. I had questioned why I was not informed prior to the final day and why the advertise goods and accept peoples money when they do not even have the goods available. The manager BANELE promised to contact me regarding my order and the availability of stock before COB on Monday 28 November and she did not do that. I then tried calling her today 29 November 2022 and the agent refused to let me speak to her as I do not have her direct line and they are working from so home so they can't transfer calls. Both Supervisors Sifiso and Banele are useless like the rest of the Makro staff.