Have you seen this Support centre article?

If you don't provide anywhere near enough info, you will be denied, and the only way for you to recover your account is to go through the account recovery system.

https://support.runescape.com/hc/en-gb/articles/206666629-Account-recovery-denied

Kilam360

I tried on multiple occassion but when I do the recovery process it sends me an email legit 1min after saying it was denied. Is there perhaps a way to contact them directly?

the issue here, is that you'll need to go through the account recovery form to prove you're the original owner of the account - contacting Support will give you the same answer - however, you can try using this:

https://support.runescape.com/hc/en-gb/articles/206811825-Forgotten-login

Mod_Kelvin

the issue here, is that you'll need to go through the account recovery form to prove you're the original owner of the account - contacting Support will give you the same answer - however, you can try using this:

https://support.runescape.com/hc/en-gb/articles/206811825-Forgotten-login

I then STRONGLY recommend that you look to migrate over to a Jagex Account - it's more secure, and account recovery much more straightforward than on the older RuneScape character system

https://support.runescape.com/hc/en-gb/articles/10682990186129-Upgrade-your-RuneScape-character-to-Jagex-account