I just made 4 separate cash deposits (with 4 different total amounts) for Bitcoin to Email and have only received 3 of the 4 Coinapult payload emails... I waited for a while but the last email never came so I suspect that one of them is hung up in the system and just needs to be pushed through. I have already claimed the payloads on the 3 that I have received.
Here are the four transaction IDs (three of which should be successful, only one has not come through):
I did the math, and I believe this to be the transaction ID for the order that has not gone through! - (63665669-0bd6-489f-9afe-869ed74d96c7)
Here are the transaction IDs for the other three orders which I believe were successfully executed:
(5c545f9b-e063-4b42-a165-6149a83fd016)
(aa925dab-9788-487b-a7b1-008e98162405)
(24745b9c-d13a-4cfe-a8d2-64642cf34a73)
I have many very good experiences with BitInstant. Please push through the payment that hasn't come through! 
I am also contacting support about this, just thought posting it in the thread may call some attention to it.Update: The support team at BitInstant is damn fast. Less than thirty minutes and I was helped. Thanks!!!