Hacked Instagram

Hello, My instagram account got hacked 5-6 days ago, the hacker changed the email and password, and made a authentication code thing i do not have access to, i tried recovering it but nothing worked. First i tried to send verification selfies to confirm im the owner of the account, i sent it several times and none of them were confirmed, after that i was COMPLETELY unable to even SEND a verification selfie, every single day i try to send a verification selfie again but it always says "an error occured while uploading, please try again" i tried everything to fix it, clear data/cache/storage, uninstalling and installing instagram again, restarting my phone but nothing worked. I tried to contact Instagram, I've sent 5 different emails to different Instagram addresses but obviously none of them responded, I also tagged Instagram on twitter and obviously no response, i ALSO sent a message to Instagramforbusiness account trying to get a real human help me, but worthless. I did not get a response. I also tried to send verification selfies with different phones but it did not work. with my phone i GET to record a verification selfie, but with other phones after i click Yes i have my photos on my profile so i can send a verification selfie thing, it asks me to send a code via my number, after that it asks to enter my previous password, AND after that it asks me to enter an authentication code i dont have access to. Pressing try another way button only "visit help center" and "enter a backup code (which i dont have also)" things pop up. I dont know what to do. I'm extremely frustrated that Instagram doesn't care that much about people who get hacked. Can anyone help or suggest something i can do? It will be very appreciated. Thanks.