If your card is repeatedly getting rejected by Sprizzy, yet your statement shows "pending" charges, these charges will disappear within a few days.  What you are seeing is called a pre-authorization charge, and it is not a charge that will "post" to your statement.

In most cases, your bank/credit card company is flagging the charge as potential fraud.  Please check for any emails/texts from them, or contact them to let them know the payment is safe.  After that, you should be able to submit the payment successfully.

Example of how a pre-authorization charge can appear as pending on a statement.  These payments will disappear within a few days.