Mr P,
If you are dealing with recruiting there's a fair chance that you are quite possibly dealing with a non-aviator who does not know the answers.
"I'm just the cook" line from that Steven Seagal movie springs to mind...
Be patient, and politely ask your questions again, perhaps with a request that it be passed up the chain to the person's senior officer (if they can't help). Someone will help you eventually - since they are asking alot of you.
Cheers, RG.