YLHQ has absolutely no control over payments processed over the ListSource payment portal. We can’t block or process transactions. If you are experiencing issues with the payment on ListSource you want to ensure that your payment information (Billing Address, Card number, ex. date, security code) are correct. If so, you want to verify with your bank to ensure that they are not blocking the transaction. Please keep in mind that all ListSource accounts have a daily card spending limit of $1,500.00/day. Additional transactions will be automatically blocked.