I love Norton Mobile Security, it works well to block unknown callers but some time people will change their number and not inform me so i will block the unknown caller. I go to my blocked calls and delete the blocked number, but still it shows to still be in the blocked call data base. there has go to be away to do this without uninstall and re installing the program. if there is please assist 
Yes it is still in the block history.. in the past I've deleted blocked number from my blocked list and still that number was not allowed to go through. i could see the number appear as an incoming call for a slit second and then would be blocked again.. Very irritating 
Was it the Block History you were concerned about in your original post?
The number is no longer showing up on the block list. I did add the number to my contacts i haven't gotten a call on that number as of yet. I expect a call today and will post further info on the issue
Is that number still being blocked? ie. showing in the Block List. Or are you referring to the Block History? The block history does not affect current blocking.
Have you added the new number to your contacts?