T24 Mobile — puk prompt

Address:

Ujjain, Madhya Pradesh, 456010

All of a sudden, my number [protected] is blocked and puk message is prompting.
This is happening since last 12 days or so.
Dial pad is also locked except for the emergency numbers.
I'm unable to dial the customer care number also.

I tried changing mobile handset too but it's not working.
Kindly provide with the necessary procedure.
Moreover, sim card number is not printed on the t24 sim.