VPN Causing Twitch ban

So I have been using PIA for a few months now and for some reason on some parts of twitch when I load teh page I get a screen telling me I have been banned, but I'm not. I can still watch and cheat and get to channels through the following menu. I was wondering if anyone else was having this problem and if anyone knows a fix.

 

http://imgur.com/YOWPN4v

 

twich ban messege

Does PIA give you an IP from a list they allocate to users? Like would it be possible other users have used the service to hide their identities when they wanted to be jackasses in chats with burner accounts?

 

If so, then perhaps every now and then you get a 'burnt' IP.

 

I am unsure of how specifically PIA chooses to work.

No, but twitch auto blocks people using a proxy.