Good luck DGT, you probably would have had a better chance if you said someone else was on your account. They don't like to admit they make mistakes. Ever.
There are now 2 possible outcomes for you.
1) They send you this:
Thank you for your appeal.
We are sorry to inform you that this appeal has been denied.
We have conclusive evidence that you were in control of the account at the time of the offence and for this reason this offence will remain on your account.
We suggest you take some time to remind yourself of the Rules of RuneScape before you start playing again!
RuneScape Customer Support
Or
2)
We have reviewed your account, and have decided to not grant your appeal. You have continued to break our rules, time and time again, and due to the severity of these offences as well as your attitude within RuneScape, we have decided that your account will remain permanently banned.
Any messages sent regarding this account will be ignored, and we ask that you re-read all of the rules if you wish to create another account.
RuneScape Customer Support
(Providing you're unsuccessful, around a 95% chance.)