newegg says you can cancel as long as they havent charged you yet.
I think. which step are you on on the billing process?
heres the process
Submitted:
Your order has been successfully submitted. Your credit/debit card has not yet been charged. Please allow 1-2 business days for your order to process and ship.
Verified:
Verification and fraud prevention measures are complete. Your credit/debit card has not yet been charged.
Charged:
Your credit/debit card or other payment has been successfully charged. Please note that you may no longer make changes to your order.
Packaging:
Your order contents will soon be packaged and sealed.
Shipped:
Your order has shipped. You may view your tracking information by clicking the applicable Order Number above. However, your tracking number may not appear immediately as the shipping couriers update only periodically. Your tracking number(s) will also be sent via e-mail to your Newegg.com login.
Void:
Your order is cancelled. Void orders are null and cannot be re-processed. If you need to re-order as a result, please do so on our website. If you have any questions or concerns, please contact us for help.