your place in line is held for 7 days until you pay, if you pay after 7 days, its based on payment date then.

My question asked something different: If the order number given after order is made stays the same or is it changed after successful payment?

It stays the same.

My preorder nums were changed when paid

I guess I'm talking about orders placed after the pre-order period, aka today.

Yeh, I can see how it can be confusing, the "Pre-orders", and the Pre-pre-orders, hehe