WRSquared

Does anyone know how and when the dealer being invoiced fits into the delivery schedule? My order was built first week of May, "shipped" second week of May, and the dealer was invoiced at that time. ETA was May 21st. Four weeks later, no updates, no ETA. Event code stuck at 4300. Dealer has shown me my order event codes which were never at MP or 4D00. At the same time, he has other orders in his system which have no visible invoice, and MP on the event code since late May, but some of these trucks were delivered on his lot this past week.