@Chelsea84
I think there must be a large turnover of staff at AirBnb support, and as such the level of experience an knowledge held by them is declining. It seems also apparent that they are having to deal with guest/host situations that they really have no/insufficient training for. They are merely call center staff who just cannot provide the assistance required. It seems that they need to take the details of your problem and then seek support from supervisors, who are no doubt over worked themselves and then report back to you when someone has told them what to do...a long and slow process, with a number of hosts/guests just forgotten about.
I would try writing a post on Facebook or Twitter and communicating that way ...