My card was locked down because I loaded it 4 times in a week. Considered unusual activity.
So, called them and they unlocked saying I need to withdraw by 7/19 as it will be cancelled. I am never to have a GreenDot again (according to them).
They went on further to explain, 1 per day, 3 in a week. Anything more sets flag to review/cancel card. It didn't matter to them when I explained it was for payment of programming work on freelancer.
GREENDOT ARE SCAMMERS. They are in the same boat as paypal, I choose my prepaids wisely and now they never get closed. Just make sure they are in no way associated with greendot except for purposes of a reload.