False advertising

Hi Fi Corp is just a big ****. They have been running a promotion on a Skyworth 50inch tv for R4999.00 since black Friday, the special ends 31/12/2022, i went to all the branches around me, nobody knows about this special, then they call a manager to assist and every time I am informed they don't have stock, when trying to buy the tv online it is the same problem, says remove the item to proceed as there is no stock. I wanted two of these tvs and I drove up and down to all the stores I know just to find the tv, but I do believe they put items on sale that they dont even have as I have been struggling since black Friday to locate a store that has this tv, I have decided to choose another tv, the Sansui 55inch tv also for R4999.00, but guess what, same story, they advertise something but then they dont even have it, How can you advertise things you dont even have?