Allowing users to ask can mean doing something elaborate, such as popping up a combined audio and video connection to a live support-center operator who can answer questions. Or it can mean doing something simple, like having a phone number or e-mail address for users to contact. But in any case, it's imperative to give users the option, especially as a last-ditch alternative when searching and browsing doesn't satisfy their needs. Labels really do matter. However difficult it can be, think of how you label content as part of a broader context.
Labels can stand alone, or they can fit together cohesively.
If you see labels as part of a broader system, then you will see how they might clash with each other. You can then refocus your labels to reduce overlap and ultimately, ambiguity. You'll find that the sum will be greater than the parts. Also remember to use labels that speak the user's language, not your own. Using brand names that the rest of us are not familiar with, simply won't endear you or your site to users, especially in trying times-like the evening of April 14.