Either very serious bug or I am missing something

Hello,

I am having a similar problem with my site.

The customer's order is listed as complete on the exported .csv file once they reach checkout and prior to paying with PayPal Advanced. I am selling league memberships that are limited and having a hard time determining whether the customer has in fact entered payment and its an error on our end or this is just an abandoned cart that needs to be marked as such on the csv?

ALSO, meant to mention in original post - The other large problem is that the item is taken out of my inventory once they hit the checkout page prior to payment. This makes for tricky inventory monitoring when you have abandoned carts.

Thanks in advance!