I suspect that @agedhorse will be along.
This is similar to my initial experience. There are differences on the export models (maybe related to voltage) and there was a serious supply issue with some components. That kept delaying my initial order until I was able to resolve it in a different way. In similar fashion (although a completely different product) my new composite front door delivery is being pushed back and back, due to problems with materials.
Similarly, the entire global logistics network is chaotic with a shortage of containers (they're in the wrong place). None of which is any compensation. I can only offer that the amp will be worth the wait and your forbearance will be richly rewarded. In the interim, you still have a stonking amp going through some stonking cabs. You're in a way better position than those poor devils making do with their Ampegs, Ashdowns, Barefaceds and the like 😉
Frustrating as hell but hang fire and you will be glad you did. I certainly was.