Event coordinator and hotel manager ghosting us

So, we’re getting married in a month at a Marriott hotel and the hotel’s event coordinator is a nightmare. He doesn’t listen, will gas light me, and it takes 6 emails to get the smallest thing done.
We hit our limit when we found out they set up the html link to our room block so badly that none of our guests have been able to specify if they’re getting a room with one bed or two. The coordinator basically said, they get what they get when they check in. What?!?! So we got a manager involved and he sent one email saying to fix the link and fix all the reservations to have the correct number of beds and our coordinator said, nope, we’re out of rooms with 2 beds (which they’re not, we checked the website). The manager hasn’t said anything since we emailed saying this needs to be fixed! What in the world can we do?