tough situation to be in, I can relate cause Im going through a similar problem with another dealer but I had a movement problem. Was really dissapointed because soon as I opened the box I knew there was a problem, the watch wasn't running..they suggested going to local a watch smith :/
I thought long and hard, and sent it back, I know I'm going to have to wait about 6 weeks to get it back (chinese new year), but I don't have enough confidence with movements, and going to a local watch smith would cost the same amount as the watch to fix. So sending back for replacement or fix was the most sensible option.
Its not you who is at fault, its their mistake so they have to help rectify the situation. If you want it replaced tell them that's what you want, that you can't replace the dial and send the wrong one back. Cost of workmanship is not as cheap in our countries as it is in china.