Enter the required information once, then review spelling before submitting. Use a password dedicated to this account.
If the form offers a promo-code field, enter the code exactly as supplied. A code is not evidence that every account qualifies for its offer.
After registration, open account settings and confirm the requested contact information.
Set up two-factor authentication and keep its recovery information somewhere separate from the device running the authenticator.
If you already have an account, use sign-in or password recovery. A mirror address does not require a second registration.
Complete any verification request in the account itself; do not send identity documents to a contact found in a comment or message.