Welcome to the BBS.
Strangely, as this is your first post as jaymantra I'm a bit confused as to how you bought a gun from the sales section on here and then got it tuned on here ? --- unless you used to be on here under another username ?
If you were on here under another username but you've forgotten your password I can sort that for you and reinstate your old account with a new password.
As to access to sales, when you first logged onto the forum you should have received this PM from Admin :-
image.jpg
So as shown above, you get automatic access to the sales section after you've made five posts.
All the best Mick