Calling ISP Firearms service bureau,
You have to have about 1-3 hours to spare.
Once the call picks up dial 0, don’t bother listening to the prompts, if you get the Male voice hang up cause you did not make it past the first ring thru.
When you make it past the ring thru its anywhere from 15 to 75 mins, Depends how lucky you are.
It took me 31 calls to get thru in an hour and a half period and another 20 minutes to talk to some one
Good luck