Slightly related question:

Does anyone know what to do when finding a Wikipedia page that's just an ad in disguise?

I've found a few and Wikipedia has a lot of pages about vandalism/verifiability which often recommends just changing the parts that don't fit or placing a warning on the user's page but what if the whole page is about a made up term that exists to link to the authors blog/company?

I can't outright delete a whole page right? I'm also pretty new to contributing Wikipedia and even though they specifically recommend just trying and learning when some action wasn't appropriate I'd still feel more comfortable if I could contact someone with a bit more experience/reputation to discuss such an instance.