I am a non-resident and send my 1040NR-EZ along with a check of $400 to Austin Texas 78741-4855 instead of 73301-0215 which is actually for non-residents. Is that going to be a problem? Do I have to send it again? I can send the documents again but what about the check? I cannot afford to send a check every time.

I'm sure they have a bunch of huge forwarding bins for all the ones sent to wrong zips or even to wrong hubs. Don't worry.