Because They Are Being Dickholes.
Really? just really ^^
you might be too young
i keep asking people that but whenever i do they give me an invalid code :(((
Most likely due to an invalid email.
If you're receiving an "invalid birthday" message on hi5 during sign-up, it may be due to entering an incorrect date format or selecting a date that doesn't meet the age requirements for the platform. Ensure you're using the correct format (e.g., MM/DD/YYYY) and that your birthday indicates you're old enough to create an account. Additionally, double-check for any typographical errors in the date.
Mayb you too young ?
0019
0019
0019
In order to fix 'RAN' online invalid web account one must download the software that is required to correct the issue. After the software has been downloaded, install it and run it to correct the problem.
Most phrases can be understood by thinking about what each word means. Invalid means false, inaccurate. Birthday is the date of a person's birth. The phrase "invalid birthday" would most likely be seen on the Internet, on websites that ask a User to enter a birth date. Web designers often use the least words to make their statement. So "invalid birthday" is a quick way to alert a Website User to "check what you entered in the form, it seems wrong". Most often, a User forgot to change the year. As an example, no one can be born NOW or as yet on May 1, 2013.
If your Blizzard password is invalid or won't let you in then you need to contact Blizzard. Get them to reset your password using the email you have registered for the account with. If your email has been changed, then contact Blizzard and see if they have a record of suspect activity on your account.
An interbank fund transfer transaction amount may be returned by the beneficiary bank if the beneficary account number is an invalid account.