These are the top reasons why a credit card does not go through:You are using an International credit card. LORAC unfortunately does not accept International credit cards at this time. We only accept United States-issued credit cards. You are trying to ship to an address outside of the United States. LORAC does not ship internationally at this time. We apologize for this inconvenience. You have entered in the wrong address, wrong zip code, or an address that is not associated with the credit card you are trying to use. You may have misspelled your address or put your address information on the incorrect line. Please check your information to make sure it is 100% accurate. You have entered in your credit card information incorrectly. Please double check the information. If you have tried to enter in your information more than 3 times, our website may not let you place an order as it may flag your attempts as potential fraudulent activity. Please contact Customer Care to complete your order if you think this may be the case.