Yes, the best way to address this would be to re-file the return with the boxes filled in correctly. 

As a representative, log into the Represent-a-client web portal to verify that the submitted return has been assessed.  As long as it is already assessed, you should be able to immediately re-file the correction.  If there is a delay in it being assessed ie:  selected for pre-assessment review, then you should wait until it has been assessed before submitting the re-file with the correction.

Hope this helps.

Thank you. That  is what I did and it went through..

I didn't mention in my post that the T183R needs to be signed by the client before you re-file the adjustment.  I assume you already knew that and had it signed, at least hope that's the case.

Have a great tax season!  :)