payment: {
    //accounts payment list
    apl: [
        //account payment object
        {
            //account type (RA or EC): this might be replaced by an account type id if needed
            at: null,
            //amount
            a: null,
            //agreed payment
            ap: null,
            //turn
            t: null,
            //arrears
            ar: null,
            //last collection
            lc: null,
            //past due
            pd: null,
            //new balance
            nb: null
        }
    ],
    //payment details
    pd: {
        //payment type - should contain the payment type id
        pt: null,
        //amount
        a: null,
        //check name (for Check payment type)
        cn: null,
        //check number (for Check payment type)
        cno: null
    }
}