The only way we can help is by telling you to email the devs Support@athinkingape.com Email them everything that can pretty much prove that account was yours: email, name, if it was linked to Facebook etc. Or just go into your settings and try to login from there if you do know all your login information
Try emailing support@athinkingape.com they are quite fast to respond and will be of more use, than us, in the forums. Good luck
If you know ur ata id still then you can relogin. In help section you can find how to reset ur password in case you forgot it. But if you not have an ata id you need to contact support@athinkingape.com . You need to prove that the account is yours though. /lock