3.99 charges when the website says FREE – Safe Wi-Fi Review

I’m glad I read the reviews prior to completing set-up. I went online to review my account and this popped up saying I was eligible for additional protection for free. I of course agreed, however when I came to the reviews I noticed someone was billed. I immediately went back to my account and cancelled and received a message stating -3.99 would be refunded to my account. Not cool, Verizon! Btw. Nowhere did it mention a trial period. ??
Review by AnyMo01 on Safe Wi-Fi.