Do I Deserve a Reimbursement?

I have been going back and forth with a previous provider’s office since March on this issue. I really need help understanding the issue so the office manager will not be able to bully me into submission again.

Im a Texas resident with BCBS PPO low deductible plan.

So back in February I was referred to a specialist after a concerning test. I got into them fairly quickly however they required payment before services. I went in believing that I would only have to pay my specialist co pay but was charged much more. Hundreds more. I obliged because I wanted to make sure I wasn’t dying. They explained the cost to me that since my deductible hasn’t been met that I need to pay in full. Anyways fast forward a week I get my EOB,

Billed Amount: $1,308

Discounts and Reductions: $852.26

Amount Covered (Allowed): $455.74

Health Plan Responsibility: $395.74

Deductible Amount: $0

Copay Amount: $60

Amount Not Covered: $0

Your Total Costs: $60

I paid them $329.08

I don’t understand how my insurance is saying that I only owe them the co pay while they’re saying that is not true since I haven’t met my deductible. Nothing I paid went towards my deductible. All the insurance agents I’ve spoken to say I’m owed a reimbursement but the office keeps repeating that they billed me correctly.

I have another 3 way call with them and insurance next week and I’m a nervous wreck. The last insurance agent backed down and essentially gave up on speaking to them. I need this money and there is also another bill it appears I was over charged by them for. All of the agents I’ve spoken to prior say I’m owed a refund yet the office keeps repeating the deductible situation.

Please help me understand the situation. I feel like there’s only 2 answers, I was over charged or insurance messed up and didn’t apply payment to my deductible for some reason. I’m feeling really defeated.