function DoVFTSale($ccno,
                       $expdate,
                       $cvc,
                       $orderid,
                       $amount,
                       $currency,
                       $instnumber,
                       $vftcode) {

        $posnetRequest = new PosnetRequest();

        $posnetRequest->ccno = $ccno;
        $posnetRequest->expdate = $expdate;
        $posnetRequest->cvc = $cvc;
        $posnetRequest->orderid = $orderid;
        $posnetRequest->amount = $amount;
        $posnetRequest->currency = $currency;
        $posnetRequest->instnumber = $instnumber;
        $posnetRequest->vftcode = $vftcode;
        $posnetRequest->koicode = $this->koicode;

        return $this->DoTran($posnetRequest, "vftsale");
    }