Pricing on shelves different when they scan at the tills. !

Clicks first I would like to say a huge thank you ........ I don't know if I just arrived at a lucky time......but the pharmacy was not too busy ! Now the only other complaint I have and have had for a very looong time. On the counter ..... you offer the special promotion. Then when you get to the till and pay.......you come home and find it didnt come off. I complained to the guy at the till........he said sometimes it just does not work as they have not updated the tills. It is really inconveniently means another 20 min to find a manager to come and change it. Please can you see that the tills are updated every morning. I love clicks and always shop all over at your stores. The one in Hout Bay is bad and now also got wrong price at Checkers centre Sea Point. You have made a lot of money out of me this winter, as I am too cold and lazy to go back !