When you are logged in to Gardiant and you want to change your password, go through the gear icon at the top right-hand corner of the screen, next to your name and firm, and select Change password from the drop-down:
You will get a message saying that an email has been sent to your email address so you can reset your password:
Click on the Confirm button in the body of the mail:
Enter your new password in the window that opens next and confirm it: