Interested in learning Cantonese (Hong Kong)

Good day!
I'm a newcomer, both in this community and in HK as well!
The company that I'm working is a local one, and I'm the only "foreigner". Although "business language" is English, it would be good to learn some Cantonese, in order to better understand my colleagues & also to ease my everyday communication with locals around me...
So...I'm interested in private Cantonese-lesson classes, maybe home-tutoring or sth.
I'm located in Sheung Wan.
Do you have any suggestions? Also, can you please give me a heads-up for the average prices for Cantonese lessons? I don't want any proficient knowledge (I don't even think that this is feasible!), just to be able to understand a few things and also to speak, so mainly oral communication...

Thank you in advance!!!
Mary