You have to raise this up to WooCommerce provider itself... Although, I doubt that they would do so. The programmers wouldn't specifically be catering just for Malaysians for our own invoicing...

I have two suspicions that it would be turned down:

- The prone of continuous plugin update may result in the clash of compatibility across other plugin technologies.
- To tabulate and deliver invoice itself holds the combined private data figures, which is not safe at all; WordPress itself holds an open-code regime, which is why deep and unethical penetrations (hacking) is always conducted to destroy, or steal data out (resulting in continuous software update).

Hey, no problem at all... Just keep up with the good work...