Capitec is capitalizing from the corona related lockdown

I have a credit card facility with Capitec. Due to Corona Virus and lockdown, I could not make payments. I made arrangements with Capitec was told that I should make R150 payments for the next 3 months to avoid any extra charges to my credit card. I was promised that everything will remain the same after three months and that I wont be able to use my credit card during that period. After the three months Capitec is charging me more than R1000 extra and when I go to Capitec branch, I was told that it accumulated during when the credit card was not in use. Capitec did not honour our arrangement and I want my money back. To add on top of everything, they have now changed the charges from our original agreement and I must pay more than I was paying before. I need someone to help me because 2 branches failed to help. Capitec is using the corona situation to their advantage, they are making it impossible to finish paying them. I am tired fighting in such a way that, I am considering depth review or depth consolidation. I need proper assistance to resolve this matter that was caused by Covid 19 pandemic and Capitec is milking me dry