SBI — Why my transcation is not valid

Address:

Gautam Buddh Nagar, Uttar Pradesh

Dear sir, i made the payment on 21th july but not able to login in the account till date now. It says ‘invalid credentials’ i also sent an email to the ‘helpdesk. [protected]@gmail.com
My sbcollect*
*reference number* is
Du27931418’and mail reply but not yet got any reply till date. So and the last date is 28 july and so i call on on their help - desk numbers so many times but they are going continuously busy. Can you please help me on this issue. . .
Gautam budh nagar uttar pradesh, india