I have Sony WH-1000XM3 headphones where the headphone strap broke after a year and a half of light use. I was only able to order a non-ome replacement part from

I have Sony WH-1000XM3 headphones where the headphone strap broke after a year and a half of light use. I was only able to order a non-ome replacement part from a third part on a different continent. Would have loved to be able to order Sony parts