yes, they email jagex, "hi my account got hacked login name:xxxxx, check the IP and lock it so i can submit a manual recovery, and remove any info not set by my IP"
even if you had all the correct info, you wouldn't be in the exact same IP location
All the original owner needs is to appeal from his IP or with original passwords or payment details. Accounts can be recovered no matter how long you have owned it.
I'll sell you an account and I won't recover it. PM me with what you're looking for, I have four accounts right now and I'm willing to bot a fresh account that you create, for security, if that is what you wish. PM me