It raises question of how binding is publishing an FAQ? If I sent them an email with that question and they sent me an answer, if they tried to sue me over the

It raises question of how binding is publishing an FAQ? If I sent them an email with that question and they sent me an answer, if they tried to sue me over the issue that email will be a significant piece of evidence in my favor (I imagine). But what if they only sent me a link to the FAQ or I just silently relied on it to be accurate?