Now it stopped at $50, but I think that's just because that's what their pumps already do. I'm going to bet it's not because of a fuel shortage, but rather to limit the amount of fuel they sell until the price stablizes, since it's been going up so fast.
Anyone else have any expriences like this?
EDIT: thank you for cluing me in on the credit card limit. I thought I'd bought more than $50 before, but I guess I just came close.