Instagram is pretty decent as social networks go, but there is still the occasional troll or spam bot. Let’s look at how to block them.
When you block someone on Instagram:
If that sounds like what you want, read on.
Go to the profile of the user you want to block.
Tap the three little dots in the top right corner. Tap BLock, then confirm you want to block that user.
If you want to unblock someone, just reverse the process. Go to their profile, tap the three dots and tap Unblock twice.