Block a contact
- 로 가다 친구 tab, and tap your friend’s name who you want to block.
- 수도꼭지 Settings > Block > Block (double check).
Unblock a contact
- Tap your profile on the upper left of your screen.
- 수도꼭지 Setting > Privacy > Block list
- Choose the friend you want to unblock from your blacklist and tap Unblock.