Everything turned out fine. They said they'd rather stay on AS because the meeting times were perfect. (smart kids, you don't look a gift horse in the mouth

)
And the best part...their airfare on AS went down $30 per ticket and I was able to claim it directly to MY My Wallet (I guess since it was my name on the credit card for original form of payment?). Directly into My Wallet, no certificates, pin numbers, etc., so that worked great.