class CanceledReasonCodes
{
    const EXPIRED_UNUSED = 'ExpiredUnused';
    const AMAZON_CANCELED = 'AmazonCanceled';
    const MERCHANT_CANCELED = 'MerchantCanceled';
    const CHARGE_PERMISSION_CANCELED = 'ChargePermissionCanceled';
    const BUYER_CANCELED = 'BuyerCanceled';
}