I'm arranging for some colleagues to travel to America, but one of them has just informed me that he was denied a Visa about 2 years ago, because the company that he was working for at the time put the 'wrong code' of travel use for him down, another company that he was working for applied for an ESTA for him in April 2018 and again he was denied this - because he had to declare that he was refused a Visa.

Can anyone answer for me - is it redundant for me to try and apply for him again, is the time scale too short?

Any help would be gladly received.