So, here's my story on this.

I am probably the worst Amazon customer ever.

I have had packages left outside my door (and stolen), I have had packages sent empty (like not opened... empty), I have called Amazon to complain about a microphone (and then found out it was the sound card output that was fucked)

Every single time they have sided with me. I'm sure they bring the banhammer on people who do really fradulent stuff but I've never had an issue with chargebacks.

Same story here. One of the major reasons I continue to buy almost everything from Amazon is the fantastic customer service I've always received. I've literally never asked for a refund and not gotten it, granted that's been < 1% of my total orders.