HDFC Bank Bank Credit Card — Without my information they withdraw around Rs.12,293.17= with my newely open saving A/c

Sir,

This is Bharat Kumar. My HDFC Bank credit card no. is [protected].

I use this bank credit card from last two year back. I only make tranasaction with this card 3 to 4 times. But not a single time they sent me credit card statement. When I ask for the same they told me "we send you with next billing cycle." I always make my useage amount. Due to unavailable of any single credit card statement I don't know what is my billing date. So I make my payment within 30 days of the usage of the tranasaction. This bank Telecaller always call me for the dues payment. When I ask her for what I have to make a payment, Than they told me sir, in our record this is not mentioned only interest is mentioned. When I told her, For what amount you charge me interest. This telecaller always ask me sir, just give me 10 min. I call you back . And never this caller is come back with updated information. Again after 2 or 3 month again other tele caller call me and same process is done. This is normally occur more than 10 to 15 times. But no one give me proper answer. That's why now I am tension free for any amount for this credit card. And I open saving A/c with this bank. Suddenly this bank withdraw Rs. 12, 293.17. when I ask him for and time to time they always ask me If you are not satisfied with us You can go to Bank Obusdam for complain.
When I goto to kolkata and I consult with my brother and I ask him for the same. He makes 5 to 7 emails to the credit card department, than they send me finally statment and bank statment shows only near about Rs. 8000. When I ask him for that false statement than they never come back with any statment.
Can any one help me for releasing my amount Rs.12000