Not able to check mails in your account? Whenever you are trying to open it will disappear and your primary account is not shown. This is a problem that has comes from Gmail end. There was some changes in Gmail server was done. But, the problem does not last for long. However, if you are still getting the problem then the best place to register your complain is Gmail customer service center. They have information about anything and they provide best solute for every problem. User can call the support team number any time and solve unlimited issues that come to account.