My email from them have lagged. When I applied monies from my Disney vacation account the receipt arrived that day, but hours later.
When I paid off the balance, the email didn't show up until well into the evening. Even then, it was the "You're staying at Disney thanks for booking your package" email. I didn't get an actual receipt until the next day. Similar thing when I purchased Memory Maker. The email showed up hours later. I understand all three are different services, but surely their systems are tied together at a certain point. All were very slow. Not a problem - just unusual because typically when I order or pay for something over the phone or online, the email is there before I can even log into my account.