Accenture India — Didn't receive Offer Letter even though I cleared TFA

Hi,
This is Srikanth Puripanda, CID : 977052.
My Interview was on June2, 2021 . Soon received confirmation that I got selected. later started with the PreOnboarding Learning process.
They said that, for those who get quailified in TFA, will receive Offer Letter and DOJ. Even I cleared TFA too. and submitted all necessary documents.
and approved in all the documents tasks. (mentioned in the portal)
After 5months, They asked for some more extra documents(as i've added experience details, asked to upload Form 16 and Form 19 ) too on Nov3, submitted them immediately. And said that, BGV is in progress.

At the november End, I asked for the status through given portal. Whenever I message., automatically they are sending a autogenerated message stated : " thankyou for participating in the process, as you have not submitted the necessary documents we are closing your candidature."

All of sudden they changed their cup, Because of this, I Didn't apply to any company and waited for this offer and also resigned from my past role.
How could they repay my time and efforts for the past 5months?
This is unfair,

Hope you'll understand my situation, Attaching my TFA clearance mail and their Response in below

Thanks & Regards,
Srikanth Puripanda