Should I ask the doctor to count the second treatment as a retreat and not charge me?

Hello, I had laser ablation on my left leg of the great saphenous vein up high where it meets the deep vein. A 3 month post op showed reflux and I had pain. It was retreated with the radio frequency technique yesterday. Vein size was 6mm if I’m remembering correctly. The right leg had the same vein treated with RF from the get go and closed I guess ok- it was 10mm. My question is: should I ask the doctor to count the second treatment on my left leg as a retreat and not charge me? Thank you.