Verizon stopped sending out report notice and violation notice emails 2 years ago. Verizon does not email you when your email account is suspended, blocked, from participating on YA. The email account is fine. Yes you can appeal through the help pages, but you need the exact text of the question or answer to appeal, which was in the email you did not get. Neither Yahoo nor Verizon ever tells you specifically what you did wrong..
Verizon has very few employees on the Yahoo Abuse Team. Yiu never really know if a live human being reads your appeals or server computer processes it. Verizon usually denies appeals. A few people, Avery few have won account suspension appeals, you don't need exact text for account suspension appeals. Usually there was computer glitch of some kind
If you have the URL address of the question, you can email Verizon, NOT Yahoo, but without the URL address of the question, Verizon employees have nothing to work with.