If you enter incorrect information when logging into your account you will see a message informing you of this.
First make sure you are using the email and password you selected when you registered, remember you can always use the "Forgot your password?" option.
If the data entered are correct, it may be for some other reason such as not having completed the registration or there was some kind of error when registering such as having entered some personal wrong data.
In order for us to help you we ask you to send us a copy of your ID to email@example.com from the same registration email so we can locate the account and assist you properly.
Help e-mail address firstname.lastname@example.org