Wipro — Onboarding delay by wipro

I got offer letter from Wipro in April 2022, then got the Addendum letter and bgv on June. After that got the Green audit mail on July. And they used to conduct doubt clearing session on every Friday which was stopped also, the last session was on July. After that I mailed many times to manager campus same reply came all the times till now is to wait . It's 11 months after receiving offer letter and the onboarding is still not done.