Crossword Genius

Refresh or refill (3-2)

Ross

I believe the answer is:

top-up

(Other definitions for top-up that I've seen before include "Amount required to restore something's level" , "Supplement" , "Replenished drink" , "Extra addition" , "Additional amount to restore mobile phone credit, for example" .)

I've seen this clue in The Sun.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.