HDFC Bank — credit card bill not given sent mail 27-.5-2019

Address:

4/1 hydel colony ram nagar roorkee, Haridwar, Uttarakhand, 247667

Sir, hdfc bank given a credit card no xxx3231, oct 2017. I purchase some goods from myntra.com amount of 2000 we are given this amount by other bank debit card but in this time hdfc tell me your bill is 5400. I am not purchase any good for this card, i tell him give me all my bills (Start to last)
But they are not given and ask we are discrete you for credit score you are not tack loan any time/any bank.
Sir please help