Babylon comes in remembrance twice. So, she will get the vials on her for two rounds.
as the seven full vials
as the seven last plagues (vials refilled)
These are the plagues that the end of Rev. warns about,
"...add unto him the plagues that are written in this book."
These are the plagues of the vials full that were written of in the little book that John ate. This eaten book then caused him to have more to prophesy (warn of).