Hi.
If you have not heard from them since Feb then I would call and ask how its going. Most of the time you should hear from the firearms enquiry officer to arrange a visit to see you normally within a month. If you havent heard then make sure it hasn't gone missing. Most departments are more than willing to help people out by answering questions. I phoned up about my firearms certificate to say it was gonna take another 8 weeks to print...I got it within two weeks.
Good luck.