How to top-up Tower of Saviors Diamonds?
Select the Diamonds denomination.
Enter your UID and Verification Code.
Check out and select your payment method.
Once payment made, the Diamonds will be added to your Arena of Valor account shortly.
How to find Tower of Saviors UID and Verification Code?
Use your account to login the game.
Tap the Avatar icon in the Upper.
Your UID will be displayed.
Entering the announcement section, you can find your verification code.