You have reached the maximum number of Sony Entertainment Network accounts that can be associated with this credit card. Sony Entertainment Network will only allow a maximum of five accounts to be associated with a single credit card. Solution Remove this credit card from one of the five accounts that is currently using it. Once removed, you can add this credit card to the new account. Try using a different credit card that does not have five accounts linked to it. Click here to learn how to add or remove a credit card from a Sony Entertainment Network account. For more tips and hints on using your PlayStation system, visit our technical support forums at community.eu.playstation.com.