Spar Walkerville never Has Stock, complaints falls on deaf ears!

I went there today 30/01/2022 to get the Spar Butter that is on sale for R49.99, and Spar rewards customers gets another R10 off. So to no surprise when I got to the shelf there was no 500g Spar Butter Bricks but only 250 bricks. This is always the case, when looking for anything on special, wether beginning of a special or the end of a special. I went to the till to pay, and asked the lady assisting me, where can I get a raincheck, to be informed to ask the manager Hendrik. Upon asking the manager Hendrik, with regards to getting a raincheck as there is none of the butter on the shelf, his reply to me was "We are a family store, not a Checkers, we don't do rainchecks". I informed him that your brouchure shows the normal R49.99 special to be valid until the 7th of February 2022, he said well we don't have stock.. I then informed him that I am going to contact the head office.. He told me not to threaten him.. I politely informed him, that I am going to contact Spar Head Office and walked away to meet my son. As I'm about 10 steps away from him, he then replies back we're getting stock in on Tuesday.. I've had numerous conversations like the one I've had today with Hendrik.. This is unacceptable behaviour from a Spar representatives person wise and business wise? Not only are the shelves always empty, but it's a bad representation of the Spar brand.. They could learn a lot from your branch in Kibler Park South Africa. Well you can actually say Walkerville Spar saves you money, 'cause they never have stock..