I'm not sure where you're located, but theres an Asian supermarket chain called T&T that carries it.

Also, check out any asian grocery stores in your area if you have them -- or in the downtown area.

I work in a mainly asian area (Markham for anyone who knows the Toronto area well enough), and im about a block north of the T&T -- same as Kings offer, i'd be more than happy to get whatever you wanted from there, box and ship to you, likely for less than $20, especially since its in Canada. Feel free to PM me if you like