Snapchat Deleting and Blocking Friends
Block a User
To Block a user who added you, tap "Added Me" on the Profile Screen
Tap their name and press the gear icon that appears next to their name.
Press Block to prevent them from sending you Snaps or Chats
or from viewing your Stories.
Press Delete to remove them from your friends list.
What if I Change My Mind And Want To Unblock Them How Do I Do That ?
Unblock a User
To unblock a user, tap the Settings gear on the upper-right corner
of the Profile screen. Tap "Blocked" under the Account Actions
at the bottom of the Settings screen
You will see a list of the users you have blocked. Tap the 'X'
next to their name to unblock them.
Once You Have Done That They Should Be Unblocked
You Should Be Able To Re Add Them Again And Be Able To Send Them Things
Again