If you plan to bypass the phone verification of Yahoo, simply enter your email address and another password and then access your account for it. If you don't have your password, thus, you are asked to navigate to the Sign-in Helper area. As of now, type your email address. After that, you have to put a versatile number here to get a verification code. If you are unable, hit here to realize how can I speak to a Yahoo representative. https://www.numbersupportcustomerservice.com/yahoo-customer-service/