The same thing happened to me last Saturday.
I finally gave up and called MS and purchased the passes. I asked if I would get an email confirmation/receipt and he told me I would. After waiting (and waiting and waiting and ...) with no confirmation email, I call MS again and this rep said that they do not send out confirmations - those are sent only for
DVC reservations.
I asked what would I need to do if there was any problem getting/activating my pass at Guest Services and was told "No Problem", just call MS and they would provide the confirmation number - which would certainly be convenient waiting through the phone queue when MS is open and impossible when MS is closed.
I wrote to
dvcmembersatisfactionteam@disneyvacationclub.com and did get a call back - saying the same thing about the "techie glitch" that they know about and are trying to fix (which is also convenient on a limited offer for DVC members - I suspect it will be fixed on May 1 after the program ends). She told me that she will pass along the suggestion about confirmation receipts (I had pointed out that I could have printed one myself had I been able to make the purchase online).
She also offered to send me an email with the information - which was sent later that day, but only the confirmation number ... no receipt for the $1,000+ transaction.
Not cool, DVC!