Issue for a race promoter - not getting credit for a race
I did a race on April 6th in Central Park. I signed in, pinned on my number, and finished the race in the middle of the pack. On the USAC site there is no record of my finish, my number, my name, nothing. I contacted the director a few times in the past few days and now he is saying that I had to finish the race and then tell the person handing out the money/rewards that I finished, even though there is a camera at the finish line. There were 50 people in this cat 5 race, and for places 1 through 9 it has people's names and places and for 10 to 17 it just says DNP. Last time I did this race in March I finished 22nd out of 50 and got a DNP, and it's registered on USAC's race so I got credit for the cat 5 race. I didn't tell anyone last time that I finished but still got credit for the race.
This time I must have finished after 17th (I figured I finished between 15 and 20).
I told this promoter that I have proof on Strava that I did the race and finished the race, and people can vouch for me being there as well. What else can I do in this situation to get credit for finishing this race?