After you file

I did my taxes and it showed that I owed $311, SO I mailed a check to them for the $311,,, BUT I did "not" know that the payment was made from my Credit card that i used to pay Turbo Tax,,, so then I mailed them a personal check for the SAME $311,,, Which made me double paid on my Federal taxes!!! I called them and they said they did receive the DOUBLE payment  and would send the $311 dollars back! BUT, I have not got it YET,, and I paid double on February 22nd! How long will it take to get the $311 back???!!!