DISCOVERY BANK ARE ******** ME!

Discovery Bank took over my Discovery Card (credit card) mid-year 2020. I have a statement indicating I owe them R11,000. My Discovery Card had its entire month-end balance automatically debited to my Private Bank account and thus always was 100% paid up. Since they migrated me they cameup with an amount of R11,000 yet I cannot pull a trail of all my past transaction because I can no longer view on my online banking. I have asked them for the statements and they just never provide them. I fear as a small guy VS such an entity I have no chance because this in my opinion is tantamount to a **** and or poor management. I have tried to get help of a senior management member. Its probably easier for me to contact by email the entire cabinet of ministers in our government. DISCOVERY BANK YOU ARE BULLYING US MAN IN THE STREET. POOR SERVICE TO NO SERVICE.