Basically - is the prefix numbers under the barcode the same for all GC's (i.e. before you add the 17 digits of the card number)?
From what i understand you need to use the long super number to redeem in store if you don't physically have the card
I have it as 9800 9353 96700, and then the unique card number for each one. Sound right?
Cheers
yup. you can also use stocard app to confirm the barcode.