To unblock a profile all you need to do is:


iOS:

Go to My Profile > Blocked Profiles > Find the profile you want to unblock and tap unblock.  A menu will then appear for you to be able to unblock that profile


Android:

"..." in the top, right hand corner of your screen > Settings > Scroll down to Blocked Profiles > Find the profile you want to unblock and tap unblock.  A menu will then appear for you to be able to unblock that profile