Never have stock on sale items

Hi, I would really like to discuss the stock situations at the Checkers Hyper in Roodepoort. When promotions happen, it doesn't matter when I go, there never seems to be stock. I have been on the day the promotion starts - no stock on majority of the items. I have been 3 days after the promotion starts - in the hope its restocked, but no. Yesterday I went to do my once a month grocery shopping, and I had all the specials I was planning on buying written down, so it could be a quick shop. But.. I couldn't get at least 5 of the specials because there is no stock. I asked the cashier to please call the manager, and the manager tells me I can get a rain check - but that entails standing in the customer service line for an extra 30 minutes before being helped. Guys, this is actually not ok. If you running specials, get extra stock. I am so bored of the same story "you can always get a rain check". and I get dirty looks for complaining about the fact that there is no stock. Honestly, I spend roughly R7000 at your store a month. (could be more, if you had what you advertised), and I will gladly take that money else where - Makro/Pick n Pay - there are ample places. I know in the grand scheme of things R7000 isn't a lot of a money - but I'm sure I am not the only person annoyed by this. So if 10 people that their R7000 elsewhere, that puts you at a R70 000 down - I'm sure now it will make a difference?