If you are having problems paying by credit/debit card:

1. Check with your credit card company to see if your payment is in progress. 
2. Make sure you have entered the correct billing address. This is the address associated with your credit/debit card.  
3. Be certain that the card security code is correct (this is the three-digit number in the back of your card).  
4. If you are making a payment by credit or debit card from outside of the United States or Canada, we suggest notifying your credit/debit card issuer. Notifying them before the payment can limit the possibility of a declined transaction.