I am not able to unblock the person whom I blocked earlier and he also blocked me...but...
GetHuman-jainchas's customer service issue with Instagram from April 2018
Help with my Instagram issue
Before contacting them, items GetHuman-jainchas may need:
Username on Account, Country you are located, Email on Account, Full Name, and Business Document that proves ownership of business account
GetHuman-jainchas's next move: go to the Instagram help center.
Instagram doesn't have a customer phone number that is answered by an agent. Instead, GetHuman-jainchas will want to follow the link below to head to their help center. We will check on GetHuman-jainchas later to make sure it's all set or try to help escalate.