Top-up phone credit
for any UK mobile.
Easy, fast & secure top-ups,
for you, your friends or family.
products: empty code: vizz
Easy, fast & secure top-ups,
for you, your friends or family.
On Top Up is committed to bringing you the fastest and easiest method for topping up your Now UK mobile phone credit.
If you need help with an aspect of our service, you can view our help and support pages.
Learn how On Top Up works, view answers to most frequently asked questions, or contact us.
