Poor Warranty Response

Checking with other owners regarding warranty claims. I received a factory new engine through VANS for an RV-12 I am building. In going over the records for the engine, prior meeting with DAR, I discovered that the prop shaft service bulletin had not been accomplished (engine was received in Jan 2025, after the prop shaft bulliten was released). To accomplish this SB I had to remove the newly installed engine and take it to a Rotax Repair Center. (Wingnuts in S. Cal). The engine also had a bad Stator which caused a lane B failure. 

The certified repair station did the work on these two items and I was told to submit the warranty claim through Motive Air, the West Coast distributor. The total bill for parts and labor came to just over $3,800. It has been over 4 months since claim was submitted and no resolution yet,

I have always had Lycoming engines and been happy with their service and warranty. I was skeptical trying ROTAX but liked the specs and assumed their warranty would be like Lycoming - if something is wrong they will fix it.  Just checking with the forum to see if this is typical response from ROTAX? If this is typical ROTAX customer service I think I will sell my ROTAX powered RV-12 and go back to something Lycoming powered. Very disappointed in ROTAX and their poor warranty response.