Question about X3 - 8601

I have only ridden in the rain once. Apart from getting wet, I had no problems. You just have to be careful because it gets very slippery, especially when going downhill. I can't say whether it's a problem if you use the wheel regularly in the rain.

I never received the receipt for my Powerwheel x8. Is it still possible to get it?
I bought the x8 instead of the x3 because of supply shortages.
Kind regards: A.Schneider