Sorry to hear that, I was not aware of this insane import tax.
But I am well aware of BRICS and how the membership countries do business with each other.
You said your resellers are stupid and I have to agree !
Brasil and China are BRICS founding nations, together with Russia and India.
Means there is in no import tax in Brasil for products coming from those other BRICS countries.
Unless Brazil is opting out and those taxes are recent.
As far as I am aware the import taxes only affect non-BRICS countries.
Either way it seems like another failure for Bambu.
You can’t promote your products in a country you are unable to provide spares to.
The taxes are a different issues and for replacement parts under warranty they should not be applied, greed is everything these days I guess.
I have similar issues with Bambu and other companies - they are only too happy to sell you their new stuff but after that you literally drop into the dark ages.