Took my son to a national showcase out of state where we specifically researched ahead of time would be played on a dirt mound instead of turf. Son was scheduled to start the first "game" for his 3 innings. Skies opened up during his warm-up, and the game was postponed several times until finally being pushed to early the next morning. The mound was still a muddy mess and no amount of quick dry was helping. Worse, his report from the showcase did not consider the subpar mound conditions as both his control and velo were impacted.
Not saying all this to complain… just to share that crap happens sometimes to even the best laid plans. Best thing to do is find another opportunity and try again, maybe with a different scouting service though. There are more than one.