If you have paid and not been upgraded, there was probably a mismtach between your forum email and checkout email. Claim your upgrade by going to this URL.
Claim Your Upgrade
If you still need help, make sure you include your order number to avoid delays.
Do Not use this form to request an account deletion, Any messages requesting account deletion using this form is automatically filtered and deleted. You can delete your account using the following link
https://leakedbb.com/usercp.php?action=deleteAccount