FALLS ADVERTI*****T

I'm confused, yesterday I received an sms about a combo special that runs from 4-6 May 2020. Today 5th May 2020 I went in after work at about 3:20 I asked two wonderful gentle about the special, one went to enquire from " the manager". On his return I was told the manager said they were out of stock. I went to findout how possible it is that a special that started yesterday suddenly they are out of stock. He told me they were out of maize, I told him that's absurd. I dont get this..this sounds like falls adverti*****t, this is not the first time it's happened. I'm not impressed at all on top of that to be told, when they receive stock it will depend on whether they buy the product at the same price as when it was bought " utter rubbish ". I do not have time nor patience for nonsense like this, nextweek I have to go back to check whether they have stock and see if "he's " in the {(mood) not his words but mine but that's the impression I got}of selling it to me at 4-6th May price. Who's time and petrol am I using...