Two points:

1)  Chinese New Year should NOT come as a surprise.  All of China pretty much shuts down to celebrate.

2)  Don't they have a warranty center in Colorado?  Did you have to ship to China because they didn't have the parts in Colorado?

I've been fortunate over the years that I've only needed to do simple things (like replace a fan a few times and probably will need to replace a controller on one of my B1 S9s soon) well after the warranty expired.  Things that I can do easily on my own.

However,  I do understand your frustration.  And, yes, they are notorious when it comes to these issues.