Should be a simple fix once they find the right person. It might not even be an in-house person that needs to be involved depending upon the management structure of the property.

From what I have seen, many hotel systems use a rate code to tie a booking to a rate. By changing the description of the rate code would automatically populate out to all rezzies using that rate code. This is why it's important to keep your confirmation email and NOT depend upon the website to dispute any issues with the property since these changes occur without notice.