Accenture India — Prelearning portal login issue regarding

Hi Team,
I have applied for Accenture and even got the pre-learning modules and I completed them within 45 days. But on and after 16-Nov-2021 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 am unable to reset the password as well.
I had a mock test on that day and i could not attend and results of earlier mock to be announced in the learning portal, but because of this issue I am unable to see my mock results nor sit in upcoming mock sessions.
Its been almost a week and its the same still now.
I dropped mails to campus queries, but didn't heard back. Could you please help me and get the issue to be solved at the earliest.