This is a Facebook promotion. Seems like everything is on Facebook nowadays. However, it looks like you do not need to LIKE their page as you could still be able to request for it, without LIKING. 

Unfortunately, there are about thirty countries in the drop down menu only so, good luck. Malaysia isn't listed, so I can't request for a sample. Too bad, so sad! 

If you received your sample, please do drop me a line.