I deleted my IG a few days ago. I needed my degree in CS to manage it.
First, you can't delete IG from the app, only on the web. But, to log into the web site you need a password, which you probably don't have since you probably signed up with FB Connect. So then you have to go through the "forgotten password" route, log into your email to click a link to actually create a password. Then you can log into the IG web site to delete your account. When you finally do that, you keep seeing these dark patterns to reactivate your account. It took me about half an hour.
It seems to me they've clearly tried to make deleting your IG account technically possible but as difficult as possible for the average user. I'm almost surprised they don't require you to send something by snail mail it's so difficult.
Going through the process when someone else signs up using your email is also not a walk in the park, even though they have "not your account?" link at the bottom of their Welcome email.
This happened to me at different times on FB and IG, and it was such a drawn-out hassle that I just went the other route, signing in with my own email, saying I forgot password, getting a new one, then deleting accounts that way.
First, you can't delete IG from the app, only on the web. But, to log into the web site you need a password, which you probably don't have since you probably signed up with FB Connect. So then you have to go through the "forgotten password" route, log into your email to click a link to actually create a password. Then you can log into the IG web site to delete your account. When you finally do that, you keep seeing these dark patterns to reactivate your account. It took me about half an hour.
It seems to me they've clearly tried to make deleting your IG account technically possible but as difficult as possible for the average user. I'm almost surprised they don't require you to send something by snail mail it's so difficult.