Upgrade deal lost due to incompetence

On 19/01/2022 my son and I went into the Festival Mall Cell C shop and upgraded his phone to the Samsung A32. It was the last one in stock so I could not do an upgrade myself. In any event I wanted the A32/Galaxy Tab combo which was also not in stock. I was told that stock of both A32 and Tab should be in by Friday 21/01. Friday came and no stock. I was then told Monday, but no stock . I was then promised the Tab and A32 by the end of the following week (28/02), but still nothing happened. On 31/01/2022 Florence then forwarded a message to me purportedly from head office, in a nutshell saying that the deal had now expired and the deal was no longer valid.

Just to be clear: The ad said "limited stock". I was not told that there was NO STOCK, only that the store was WAITING for stock. The reasonable assumption was that an order had been placed, which is why I waited.

I would appreciate it if Cell C would honour that deal as I waited in good faith and I believe that unit did not arrive not because of stock issues, but because of incompetence in Cell C's internal infrastructure.