I made an order on Friday night from newegg for a new computer setup and the heatsink I ordered is incompatible for the motherboard I ordered. I didn't realize it until Saturday morning and they're closed on the weekends so I can't call to change it. I checked the order status and it says being prepared in the warehouse and I Emailed the sales department to see if they can exchange the heatsink for a different one with the exact same price. I don't want to have to RMA and ship it back and pay for shipping on another one. Will Newegg change the order or do I have to call them up early on Monday morning? Anyone have a situation like this before?