you're not, by chance, using a computer at a school or college, are you? bebo is blocked on most educational systems, some prefer a big screaming notice that you ARE in trouble, some give you a message similar to a 404.
i've cracked off a "contact us" form requesting an email address to write to for cases like yours. i don't know if i'll get an address, but:
Thank you. Your message has been sent to the support team.
We try to respond to all questions within 2 working days. When we respond, we will send an email to the address you entered.
so, tuesday, perhaps? mebbe sooner.