How Many Reports To Delete Instagram Account

It does not depends on how many persons are reporting a particular account.

If you have noticed Instagram asks you questions that why do you want to report the particular account.

Instagram verifies the reason and if they find your claim right they block the account.

Normally 3 to 4 reports to a particular account is enough to block it, only if the reason proves to be genuine in the verification done by Instagram.

Hope, this will be helpful for you!