To remove a phone number from your Block List please follow the instructions below:
1. Go to the Spam tab.
2. Tap on Block List to view all the numbers you've blocked.
3.Tap on the number that you would like to remove.
4.After you've tapped on the phone number/contact, click on unblock.
Unblock- This will unblock the phone number and you will receive phone calls from this phone number after you confirm this update.