Hello, sorry the thread is a month old, but I've only joined today!
I stayed at Pop Century in February and the free breakfast offer was included. I had been told on booking that it was effectively a normal quick service credit per day and this is indeed how it turned out, I was able to use it at any quick service location. In a couple of places I was also able to get a dessert instead of a drink. (Sunshine Seasons springs to mind). I've always found this ambiguous, whether it's official that you can always switch a drink for a snack item when using a quick service credit, it seems some places do it, others don't. But I suspect that when viewed at the till, the breakfast credit just comes up as normal quick service credit so that's why I was able to get the dessert with it. At sunshine Seasons, I got a drink, main course and dessert, fully expecting to pay separately for the dessert, but the staff member on the till helpfully suggested that I could pay separately for the drink and get the desert with the credit, becuase it would be cheaper that way. Intrigued by Jon84's answer above - it's possible to use one quick service credit as 3 snack items - does that work anywhere?