If you switched to a new device you can restore your existing Premium subscription by logging in with the same Apple account.
Open Truecaller
Open Premium tab
Tap on the three dots on top right
Select 'Restore Purchase'
If you switched to a new device you can restore your existing Premium subscription by logging in with the same Apple account.
Open Truecaller
Open Premium tab
Tap on the three dots on top right
Select 'Restore Purchase'