You could easily get a refund for it. I’ve gotten a couple refunds off OF models saying they’ll do a live custom. I always agree to it knowing I get a free video and my money back in less than a week.
Just send in a screenshot of the bad quality to the OF email to get it refunded. Or simply ask and she could a higher quality version without the need for a refund. Whether it’s her or an agency, usually they will try to do better to keep you subbed and paying.