Your submitted order is sent to their warehouse for shipping immediately so Razer is unable to amend your order. If your package could not be successfully delivered, it will be returned to the warehouse and a credit will be made to your payment method.
There are many possible reasons for a credit card not being accepted:
The card is expired. You have reached or exceeded your credit limit.
You have exceeded your daily charge limit.
A computer at either end of the transaction is having technical problems.