Citibank — deducting all the amount in salary account

Address:

Hyderabad, Andhra Pradesh, 500032

I have citi bank salary account ([protected]), begumpet, hyderabad and citi bank credit card ([protected]). Even though the credit limit is 70, 000/- initially, the bank has shown that i made a purchase of 1 lakh and 4 thousand approximately. I paid minimum amount on august 25th which was mentioned in the credit card statement. But the amount in my savings bank account i. E. Nearly 22, 000/- was deducted on behalf of my credit card on september 1st. When i called the bank they are saying that they have deducted on the basis of standing instructions. But they have to deduct the amount when i don't pay after the given amount of time.