My outstanding balance

Good day,

I opened a Cape Union Mart card in December 2021, the last time I used the card for tra sections was months ago. Every month I pay the card and don't purchase anything. On the 16th May 2022 I had credit available of over R1200 all of a sudden today swhen I made a payment and prior to paying asked for the balance there was only R692 available. I asked the lady at cape gate branch for assistance and she told me she can't help me and that I should wait a couple of days and email RCS.

Sort out my account please Where did my available credit go too