Hi lablanc,
I understand that this experience has left you feeling uneasy about Greendot's level of service.
As much as we want to help you, the transaction that had happened was already in your Greendot account. Therefore, it would be better to contact them to find the root cause of the issue. We can give it a try the second time around.
If you have any other questions about tracing your funds, feel free to go back to this thread.