MESS UP ON EBUCKS BECAUSE OF ACCOUNT UPGRADE

I WAS APPROACHED BY FNB IN JANUARY TO UPGRADE MY ACCOUNT WHICH I AUTHORISED. ON MONDAY I SAW THAT I EARNED ALMOST NO EBUCK AT ALL WHICH COULD NOT BE TRUE AS MY SPENDING IS THE SAME EVERY MONTH. IN CONTACTING EBUCKS I WAS TOLD THAT MY CREDITCARD IS A STAND ALONE CREDIT AND BECAUSE OF THAT I AM NOT EARNING EBUCKS. EVERY TIME THERE IS AN UPGRADE DONE THERE IS ALWAYS A MESS UP BY FNB.!!!!! I REALLY AM NOT HAPPY. THEN I NEED MY ACCOUNT TO BE DOWNGRADED TO WHAT IT WAS THAT THE CREDIT CARD IS LINKED AGAIN AND I WANT MY EBUCK THAT I LOST OUT ON BECAUSE OF FNB