There is a PokéStop located at my business, however it is listed under the business that was previously located here. How would I go about fixing that?
They've currently disabled the feature to request new and modifications to portals/Pokestops which was available in the previous game (Ingress). The pokemon game uses the portal information from that game.
Most people suspect that they will re-enable this feature when things calm down and they're not as busy.
The Google+ Pokémon GO - Pokestop & Gym Appeals community mentioned in the post does not officially relate to Niantic. It was created due to the excessive and wrongly targeted Pokestop requests on the Ingress Portal Appeals community.