Maybe you tried this already, if not, this worked for me as of yesterday June 7th 2018.
I was getting error code “AS-18006” when I logged in saying that said my account had been deactivated. Followed by an email from epic games saying I was perma banned. It wouldn’t even let me log onto the epic games website. I tried responding to their email in an attempt to get my account back, but that was useless. They sent me some copy paste response saying “you’re banned and not able to use any other account associated with this one.”
I creating a new account, thinking that it was just that account that was banned, but every time I dropped from the bus I got an insta kick saying “I may be using a VPN, lagging or cheating etc..”
So I figured it was my IP that was being banned. But I logged in from another PC and it worked fine. So it was definitely an HWID ban.
I tried using an HWID spoofer, tried spoofing my MAC address but nothing.
I read somewhere that formatting your hard drives/s and reinstalling windows might fix it. And it worked. I played all day yesterday just fine.
FYI, I did reinstalled windows onto my SSD instead of my old Hard drive which might have helped.
TL

R. Reinstalled windows and wiped hard drives, the unbanned.