Yes, im sure i get them back, allready got 1/11 back but its really anoying.
You can visit the Instagram Help Center
using this Link - and complain that they made a misstake baning your account. They will ask for your Name, Email and Accountname, after sending those Informations u get a email asking for u to take a photo of your self, holding a paper with a number they give you, your Real Name and Insta Acc Name. On the Photo they want to see your face and your hand holding this paper, really anoying.
I always got my Accounts back doing this. Sometimes directly after sending the photo, sometimes after 7-10 days. Once they denied so i filled out the form 5 Times and got the Account back after 3 days. Just be patient and tenacious - even my Accounts with hardcore botting where recreated.
Status:
Acc 1/11 was reactivated around 15min after sending the Paper - 10 to go
Acc 2/11 was reactivated around 30min after sending the Paper - 9 to go
Acc 3/11 was reactivated around 35min after sending the Paper - 8 to go