They can help if you have proof. I had missing payments from a show as picked up on Tunesat. Library didn’t help and BMI didn’t help. I found the show in re-run on Netflix. I took down the timings and sent to BMI and they finally paid, retroactively, for those TV placements.
Fox sports and CMT are the worst as they generally don’t re-run the shows, so hard to verify. I have more missing payments from them than anyone else. Thankfully on this last BMI payment, for 2016Q4, I was paid all Fox Sports detected on Tunesat.
Had same issue with underpaid commercial detections. Once I pointed out Competitrack counts BMI paid in full.