If I have, for example,  $40 left to go before I get 10% off my future orders and have $40 in store credit and I buy something using the $40 in my store credit, does the $40 left to go before the 10% off disappear?
I mean, does the store credit count as an amount of money I bought something for (if I make a purchase)?

Sorry if it's a bit unclear.

I *think* not, just because recently, several peoples totals were adjusted to remove gift certificates spent. But if it's store credit, i.e. money that you tried to spend but got refunded for, then maybe it would count. Don't take my word on it though, I'm sure Amanda or Ellen or Razzleg will find this thread.

 Yep, it's both money I've got refunded + store credit I've earned. :)
Thank you for your answer.

That kind of credit always counted for me before, unless it was changed. The credit won from say a forum contest does not. I'd think the refunded money spend would count since it would have gone there anyway. 

it should depend on what the credit is from.  was that $40 already added to your total purchased?