I was trying to book a slot for nmat but none of the slots are available. What should I do in this case?

I talked to their customer service. Sadly, only the available slots can be booked, and no new slots will be available in the future. Few 2 am and 3 am slots were available when I last checked yesterday. That's why it's first come first serve.

the reattempt has to be scheduled 15 days after your first attempt....keeping that in mind you have to wait for fresh slots to open .

i contacted the helpline no. the concerned person tld me to write a mail and assured me that slots will open in the future.

i am facing the same issue. u can write an e mail addressing your concern or call the helpdesk supposing they would answer ur call.