To change your account password, you must log in to Texyon and go to your profile.
In the upper right you will find the Settings button, where you will see the Change password option.
When you have requested a password change, an email will be sent to your inbox with a link.
This link will redirect you to a new page which will ask for your new password and the birthdate to check.
Check your Spam folder in case you don't receive the message with the link. If you don't receive it, send a ticket from the account where you are trying to change the data.