State Bank Of India [SBI] — credit card-cheating fraud with customer

Address:

A 85 Sec 22, near sachin dairy, Gautam Buddh Nagar, Uttar Pradesh, 201301

I did one transaction (No cost emi) with sbi credit card on flipkart the same day i cancelled the product money refunded on the same day, but still emi generated. Fraud cheaters employee of sbi card generated emi on refunded money when i complained they said we have taken request to cancel emi after that they have again debit the same amount and credited same amount.
Summary money spent is refunded balance should be 0 but fraud and cheater sbi card playing unethical unprofessional cheating game giving credit and debit on the money which is already refunded and charged emi with interest in statement.
Biggest cheater and fraud company looting customers if they are not checking their statement and tracking the transaction history.