In which language should I send feedback?

[toaruScar]

There's a feedback button on the GUI, and I want to send some feedback to ASUS. My router's GUI language is set to English but it's being used in China. This got me thinking, should I write the feedback in English, or in Chinese?
Or should I just write feedback here?

 

[tallytr]

Definitely both

 

[RMerlin]

English should be fine, though if you speak Chinese, it might possibly be easier for both of you.

 

[HellDiver]

I recommend Bajoran. The Ferengi coders will understand that.