Ehh

Its a good idea but its really annoying that you get a star buy a purchase, not how many drinks you buy. Its also very glitchy, you tap on stars and they disappear, or just today we were suppose to get a free star for leap year and I had six, it was suppose to be 7 and a free drink but all my stars disappeared instead. I have to start all over again.

Aryrrar about 7-Eleven: Rewards & Shopping