out of stock on promotion products

Last week you had the 3kg sunlight washing powider for R48.90 on broadsheet and the 1.5l Jim for R22.90. I currently stay in Kempton park and thought the duration of the promo I visited a couple of the participating Pick n pay stores around me and no one had stock.They told me I had to wait for the last day of the promo to do a raincheck, which also doesn't make sensense because I should still be able to do a raincheck any day of the duration of the promo because you don't have stock. I went on holiday over the weekend to Mpumalanga and went to the Pick n pay at Riverside mall, guess what? They also didn't have stock of both the products. My question is why do you put stuff on national advert if you know that you will not have stock. My email address is [Email Removed]