Came across this code '"20CHARLIE" to get $20 off Foodollars for Master Lanzhou Chinatown for any Foodollars purchase of $50 and above!' Not sure when you have to enter the code by, but once you save it to your 'promo code bank' it doesn't expire till 25/1/23.
The buy $20 get $20 is a better deal but we've bought and used that one, might use this offer too.
Need to put code first before buying the food dollar (under promotion).