Go to the
Refunds
support page and scroll to the bottom.
The 'Contact Us' button is at the bottom.
Use this navigation:
Contact us -> No -> Jagex -> Request a Refund
Got it. Sent request. As a follow up question to you is; do you see a badge above your username? For example, May {badge} 2006 with your name at the bottom. What does this mean? Does it mean you have membership? If so, I have the same badge, and I am not even a member.