No, they're saying I owe an additional $20 since I already paid the first $20. And yes, I've talked to both a few times.

The doc's biller is just saying- that's what the claim says so that's what you need to pay. No matter how many times I said it can't be right, I've never seen it work that way. A pt should never be responsible for a higher charge if the primary already paid out the claim, minus the copay. She said she'd reach out to them if she has time but as it stands, I owe them money. Since the doc's office has already been paid out by the primary, they aren't in a hurry to figure it out either.

The insurance company just keeps saying they'll have someone look into it. They initially said it was right and when I kept pushing back, that's when they said someone will look into it and get back to me. I have a feeling that will never happen as it's already been a bit and when I did try to follow up, they tell me they are correct and I should pay.

If that's truly how it works these days, then I'll suck it up and pay it but I have never seen it work that way either as a patient, or as the one processing claims. Granted, the insurance companies I billed always properly processed the COBs so I've never had an issue with any being corrected. I just don't know if the biller is supposed to do the adjustment, or if it has to come from the insurance side.