This is a bit tricky, although I have done a few shops through ISS, the last restaurant I applied for was denied.
I wrote to Goodwin and they said they would assign me if it was still available. I also get emails directly from Goodwin and am then sent to ISS. I much prefer dealing directly with the MSC, as ISS has their own rules.
I still don't understand what the #'s mean, but I know you do have to go through ISS for many of the MSC's now. I also am sorry I signed with the Gigspot thing, something I am unable to do and now cannot get off.
Once you've signed your a member of the original MSC, just using their scheduling Co.
Live consciously....