If your account is active (and paid up), and you are confident that the problem is not with your phone (you can try your SIM in another phone, or try another SIM in your phone - to rule this out), You should send a private message to the moderators team. Be sure to include your account information and a description of the problem.
Information regarding the moderators team can be found by following this link.
Click here to send them a private message.
