There is one direction to it. This is one scenario.
When your member was playing the tournament, he or she might have minimised the mobile app and then, once the tournament was finished, he or she full-sized the already minimised mobile app and then, the app would have asked, if he or she wants to continue the tournament or not.
As obvious it is that the tournament was already completed through PC, your member might have clicked the option to WD.
So, right now, through PC, the round is already completed but according to the mobile application, it is "WD"
So, that's how it was happened.
And right now, if the tournament was only 2 rounds, he or she would have won the credits as per the score even though it shows WD.