HDFC Bank — hdfc credit card amount deduction issue

Address:

500045

Hi sir, this is balakrishna, holding the hdfc titanium credit card (5241 xxxx xxxx 0273) and mobile number (88xxxx5257). My complaint is that some amount from my card is deducted from card.

I received monthly statement on 19th may 2018, it shows :
Payment due date : 07/06/2018
Total dues: 22, 628.64
Minimum amount due : 1, 140.00
Credit limit available: 26, 000
Credit limit available : 3, 371 0.00
_

Then, i used card at bajaj electronics for rs 1/- (Date 19/05/2018) : limit shows : 3370

And 22/05/2018, i paid minimum due: 1140
Then it shows credit limit available : 1508.52

Then what happens remaining amount 3000+ ???
Can you please, refund the amount as soon as possible...
Thanks,
Balakrishna