It can take Jagex up to 24 hours to reply but it depends on the queue. It might be much faster.
You will receive an email advising you of the result.
The top two boxes on the recovery form are for you to enter an email you want the reply to be sent to. If the recovery is successful, that email will become the new registered email for the account.
well thats good to hear considering its 15 year old+ account. hopefully my bank isnt gone i had well over 10b. its really killing motivation when i have dropped alot dupes from my ironman to gather up the wealth to alt