Accenture India — Request for Assistance with invalid login

Hai Recruitment Team,
My Candidate ID is -C11839201. I have applied for Accenture and even got the pre-learning modules. But on and after 19-May-2023 I am unable to login to my account.
My login credentials are showing invalid in the learning portal (https://accenturelearning.tekstac.com/login/index.php).
I have followed the standard login procedure, entering my username and password correctly. However, despite my best efforts, I receive an error message stating that my login credentials are invalid.
I got a mail regarding my doj and location.. Which will be on June 5th Hyderabad after that Iam not receiving any mails regarding HR meets and On boarding relative.

As my joining date is approaching no HR is assigned for me.. Please do look this this issue
I have been mailed to accenture many times but I didn't get any respone.