Tech Mahindra — About assessment Link

I have successfully registered for the off campus mega drive for Tech Mahindra 2021. I have received the mail regarding registration ID and PIN but not the test link
It's already 7th April, 2021 now and I am still waiting for the link eagerly. I have queried my problem multiple times on the email provided but still no response.
Pls take my subject into your concern and provide me with the test

Your registration ID : MA5YU2VH3Q
Your registration PIN:2085644