It is not necessary you have applied on the project or the person who has applied doesn't have any access to your account. Anyone can fill the google form by anyone's info which the owner of the account can't know. And the person who applied on the project may get payment too instead of the real owner of the account and it may happen for telegram campaign (usually), it may happen for facebook, twitter, etc too, in this case, they user others twitter/facebook profile who has already applied on the project. And this type of sin happens when the project does not require proof of authentication.