Pick n Pay account payment allocation

For the last two weeks I have been passed from pillar to post between RCS and Pick n Pay trying to resolve an issue I am experiencing with my store card. I made a payment towards my account at Pick n Pay Clearwater mall and it it immediately showed that I have credit and yet to day I am unable to use that credit, RCS keep on calling me to day that the last payment I made was in September!!!!!!!!!!!Does anyone between Pick n Pay and RCS actually know what is happening with my account. I have uses so much money making calls to both RCS and Pick N Pay.My card no is Store card no:***. This actually so frustrating and a a disappointing service to say the least.