WP completePurchase issues

[darylp041]

Has anyone been having issues checking if WorldPay completePurchase() works?

I seem to be getting errors when trying to complete or check if the status of the order is complete. For example, this logic works in v2, but in v3 the HTTP parameters never get set or can be set.

        $response = $this->gateway->completePurchase([
            'callbackPW' => $this->gateway->getCallbackPassword(),
            'transStatus' => 'Y',
            'transId' => $order->trans_key
        ])->send();

Inside "Omnipay\WorldPay\Message\CompletePurchaseRequest", there seems to be no way of setting the parameters needed to pass through.

Strange that version 2 works, but moving to v3 does not though.