You can usually sign in with the email address or mobile number you registered and your password. Always keep those details private, and only enter them after confirming the page is a trusted 789TAYA sign-in page.
If you have forgotten your password, look for the password recovery option on the login page. Complete recovery only on a page you have verified, and do not share any one-time code with another person.
No account yet? Register If you do not have an account, find the sign-up option on a confirmed 789TAYA page and complete registration there. Avoid sign-up links from unverified messages or unfamiliar sites.