Deadline for corrected 1099-R

My financial institution made a mistake and duplicated an end of year RMD.  Their solution was to take the "excess" RMD and roll it over back into my IRA, which I did.  I was told that they would issue a corrected 1099-R since the original 1099-R  erroneously shows the excess RMD.  As of May 28, they have not issued the corrected 1099-R.  Is there a deadline for the corrected document?