I'm so sorry your dealing with this! But i agree with Virg, time to go above all their heads in bring in the owner, chain/regional rep whoever is at the top of the peckign order. I would personally refuse to deal with this particular TA and be very firm with the manager about this, you need someone who can take over the reins and handle the details accuracy and professionalism.. clearly something your TA is lacking!
But just think, 12 more days and you'll be able to soak in the sun with your family and new husband!