There's a limit to how many accounts you can create per IP. If you've made all of 'em I guess you can swap IP (e.g. signup using your mobile phone, at work, at an internet café, at your friends house etc.) or by refreshing your own, in case your ISP allows you to do so.
Here's a tip tho; I've seen a lot of people not being able to log in to their account if they've made their password to long. Thing is on the website it permits for a number of characters which exceed the number of characters the client can handle in the login information. So please use no more than 12 chars/numbers when making it

If you really wanna continue using your already existing account, and they haven't replied, then try PM'ing them again (either Viper or Daemon) with as much detailed information as you can proving that you're the owner of the account.
I hope it was helpful for you
