group Vietnamese lesson? (Ho Chi Minh City)

Hi

l would like to learn some basic Vietnamese to make my life easier here ( until now l know how to bargain :) if you have a group class for foreigners that l could join ? or you hired a tutor and more person could be cheaper for each one? prefer the teacher is Saigonese, l heard the Hanoian and Saigonese even could not understand each other sometimes by the language.....
l am only available on Sat ( all day) and Sunday.

Cheers