Tune Kit - Mattoc Incremental Volume Adjust IVA Upgrade Kit for Dorado Air Spring

Purchased this tune kit based on the picture showing IRT with air valve for Mattoc. There was second picture showing IVA but I thought it was to show upgrading from IVA to IRT, because other tune kits seem to be IRT as well. In order confirmation and shipping emails they showed the IRT picture only. But I received IVA and sent emails to return for refund. They said the two pictures show different options for upgrade but IRT option is not available. I had to pay for return shipping and currently waiting for refund.