Back in January I had to replace both axles due to a road hazard. The lead time was 2 1/2 weeks. There was not much I could do about that.
However, there was no delay or confusion about what to do, because the repair shop, insurance agent and I were in constant communication.
What is important is to keep the ball rolling. If there is a log jam on the type of axle, you might contact Dutchmen with the TT VIN number to see what you can find out.
Things go smoother if there is an action plan and all the parties are working together.