I lost my phone and my Instagram's been hacked. I get login alerts in my email all the time, from my old phone. There is no Instagram support, there is no chat, there is NOBODY to turn to. If you want help with your account, you need to login. Which, if the problem is being locked out of your account, tough shit!
"If this wasn’t you, you can secure your account from a device you’ve logged in with in the past."
I literally logged in there ONCE. FUCK INSTAGRAM, FUCK FACEBOOK, FUCK MARK ZUCKFUCK