Instagram has the worst support of any app or website. They will lock you out of your account even though you logged in correctly due what they think is suspicious activity (putting your account back on a phone because their piece of crap update kept logging you out of it). Then they require you to enter a code from an email that NEVER comes. Then if you ever navigate your way through their obvious attempts to stop anyone from contacting them directly they simply reply with an automated response of "Sorry, we cannot help you & dont contact us again about this issue".
Lost two business accounts this way so far, both connected to Facebook pages, can easily prove they are mine, but, they are worthless now. Beware.