Pick n Pay Smart Shopper / Store card - Shocking support / service

I app**** for a Pick n Pay store card online and received a message that I qualify. When linking my Smart shopper card to the store card, I received a message stating I must check if my Smart shopper card is registered. I checked on the Smart shopper app and in store and my smart shopper card is registered. However, the error persisted and I could not link the cards. I kept receiving messages to collect my store card in store. I contacted the call centre at RCS and they said the issue is with Pick n Pay smart shopper. I contacted smart shopper and they said the issue is with RCS. I went into a store and they had no idea what I was talking about - they said they do not have store cards to issue. They checked and my card was registered. On calling the contact centre, they could not assist and kept saying the card is not registered . I believe I changed my smart shopper card 3 times as the staff members tried to help me and thought this would help. It didn't. the last time, I spent almost 2 hrs in a store trying to sort this out and still no one could help. Call centres send you from pillar to post and it goes in circles from department to department until they refer me right back to the department I started in. I just want to know what the problem is and how to solve it. It could be something I need to change; that is fine, I just want it sorted. This has been a frustrating, unpleasant experience. Please can someone who knows what they are doing and can advise correctly assist to sort this out please? I don't even know what my current card number is because it has changed so much.