The most common error received during checkout is customers using their current living address and/or ship to address as their main billing address. If you currently live on campus, renting an apartment during school or sending a gift to someone and the credit card you use is billed to a different address; you will receive an error message during checkout. Your billing address (where your monthly credit/debit card statement is received) must be the address listed as the main/billing address in your profile. You will have the ability in your profile to add addresses where you would like goods shipped to if different than your primary billing address.