Whats Wrong then??

[Soy]

Usually the IP information is enough for them to give the account back

[:Technical]

Add in a extra peice.
Go on further that you have tryed to cancel your hotmail (or whatever) account and that you no longer have access to it.

Incase you don't know what the questions mean, here is a guide.
How-To Guide is the red writing beside the question!

Your Habbo name: The desired Habbo account.
When you registered your Habbo account: When was it created (exact date).
Past email addresses registered on your Habbo account: The email address you used at creation of desired account.
Your Habbos Date of Birth (the one you entered when you registered the account) - This means "your date of birth".
Your ISP and IP address (Internet Service Provider - AOL, BT, Virgin Media etc. - This is the company you pay for your Internet): Your internet service provider. example: Virgin Media.
If you have bought credits (yes/no): Have you ever purchased credits?
If you have, when and for how many?: If yes, what was the date and how many exactly?
How did you buy Habbo Credits? (Cheque, SMS, Credit or Debit card etc.): If yes, what method of purchase did you use?
If you bought be home phone or SMS please supply your phone number: If yes, what was the number of your home/mobile phone (which ever method you used and both if you used both).
If you purchased by Ukash, Clickandbuy or Credit/Debit card please supply the email used for that purchase: Which email did you use at the purchase.
The names of any other Habbo accounts you may have: Which other Habbo accounts did you previously have? They will be able to track down your IP and accessed accounts - so tell them in detail if you used your mates or a previous accounts!

Now, e-mail again.

[Accipiter]

Your isp may have been different when you made the account, try and think back if you changed a router or service provider?

Other than that i was stuck in exactly the same situation, a email was hacked & the account for 2 years, i didn't email about it properly until ludus came, he answered and i got the account back

Try and add as much extra details as you can, i even put the previous look before it got noobified and turned into a spiky hair with a grey t-shirt .

But i don't get the IP bit, doesn't an IP change constantly?