I'm 99% certain none of the OSBot administrators check their email.
Disregard @Swizzbeat's message, as it's just him being annoying. (Although you should actually look into scanning your computer of viruses)
Your best bet is to just send a private message to @Maldesto since he's the nicest and most reasonable staff in my opinion. @Mikasa is also a great option to go to. Other staff members can help too, but those two are probably your best options. For a full list of staff, click here.
In the private message you should contain previous login names, and IP addresses you have used on your old account. Sending the message from the same IP address as your old account would make it really easy for the staff too.
Good luck,
-Master Chief