Every Monday Yifang Members can receive 20% off all drinks excluding sugarcane. To be a member you simply need to follow them on Instagram or WeChat and show them instore.
I went to their new Elizabeth Street store today and both their signage and staff confirmed it.
Alternatively you can follow them instore, show them and then unfollow.
Also applies for the store on little Lonsdale/Swanston that used to be one zo. The sign has been up for a few weeks now.