You probably have no recourse based on the MLS, though I would rely on an attorney rather than a bunch of real estate agents to tell you that. Just because there are disclaimers on the MLS listing doesn't mean the Seller and lising agent have no responsibility to try to get that right. Only the judge knows for sure!
Check section 16.3 of the contract though: If properly filled in, that reads that the Seller represents to you that the HOA dues are a particular amount. If that wasn't filled in, you may have a cause of action against your agent for failure to represent you...at least if your agent was working with you under a "buyer agency" agreement. If it was filled in with the number $191, then there is a potential argument that the seller misrepresented a material fact about the property to you.
This is not a trivial matter. The cost is roughly $900 a year. Maybe more important, I've worked with a lot of buyers who wouldn't look at a property where the HOA fee is that high. So the fact that the fee is higher than advertised may impact the resellabillity...and even the resale value of the property. I think this may be worth at least an hour with a knowledgeable real estate attorney (not just any attorney). Assuming you've closed, however, you inherently risk piling us some costs with no guarantee of a positive outcome.