Issues at Pick n Pay!

I realized since PnP was never going to answer my question (we going for a record here - 7 months without answering a question) It seems whenever you purchase a product which has a pet club discount, it does not go off at the till. I highly suggest PnP adds these pet club deals onto the smart shopper app so we do not have this issue every single time a customer goes to the shop to purchase a product with a pet club discount, and it does not till up properly. Must a customer spend so much time getting the discount? Furthermore, why does PnP have so many tills, lets say as an example 15 tills in a PnP store, yet only 5 or if you lucky, 6 tills are open? What is the point of having so many t ills if all will never be used?