And after they deliver them, make sure you get to the concert early. If the seller double sells the tickets, like they did to me, the first one in the venue gets the seats!.

I think you would be able to get in; however, i've doubt that you've a good seat as implied for the price you'd paid for. The reason being is that UberSeat doesn't vet their sellers and doesn't post the exact seat number.

Good luck getting a refund. Just get them to deliver the tickets as soon as possible so you have certainty about your seats.