Issues regarding IP India Portal registration- urgent help

I am trying to register myself as trademark attorney in the IP INDIA portal but the spaces for bar council registration number isn’t letting me enter my enrolment number

My enrollment number is like F/1234/123/2025
I am enrolled in bar council of West Bengal.

The space in IP India portal has only three spaces, first one isn’t letting me put F1234 together, not taking digits after I put alphabet. And the second space has a limit of 5 digits.

I am unable to understand how to register to get attorney code. Please help.