There aren't permanent bans in Runescape.

[Koont]

I have several accounts banned from back in the day still banned... I don't think this is true? any proof

[Gorilla Sensei]

My old main has been banned since 2011

[Alen]

I wish I could get back my perm banned account from 2005 with over 100 phat & hween mask sets =( Tried to apply but got denied, feelsbadman

[bottingbandit]

8 hours ago, Alen said:

I wish I could get back my perm banned account from 2005 with over 100 phat & hween mask sets =( Tried to apply but got denied, feelsbadman

When was the last time you tried to log in? Reset the password and login on the website and check. They silently unban them. 

[JPG]

2-4 years are you crazy this is basically a perm ban? you could max perhaps max like 2 accounts easily in this time span 

[Switzzz]

Proof or it didn't happen