With your CCW being expired, that's probably why. And I highly doubt an FFL would report themselves for selling a firearm they knew was a straw purchase. But let's say that is the issue:
A straw purchase (or nominee purchase) is any purchase where someone agrees to acquire a good or service for someone who is unable or unwilling to purchase the good or service themselves, and then transfers the goods or services to that person after purchasing them. If the purchase is conducted at an FFL, then the Purchaser who conceals the identity of the ultimate possessor of the gun can be charged with making false statements on a federal Firearms Transaction Record. Which makes purchasing a firearm for another person ipso facto illegal, regardless of that person's status as a legal possessor.
By your own words, you admitted that's what you did. If he did report you, he wasn't wrong. But again I don't think he would have.
What can you do about? Renew your CCW immediately! Then call the ATF, tell them you tried to purchase a firearm and the process was held up despite having your CCW. If you go to renew your CCW and there's an issue, then you'll get a letter explaining and how to address it.
