Why is iTunes Customer Service rotten?

When I buy an MP3 tune at Amazon and the song turns out to have some recording flaws, distortions, noises, lapses, etc., then Amazon Customer Service will enable me to download the tune again hopefully without the problems, and if the problems persist and I am not satisfied with the technical quality of the piece, then Amazon will refund me the cost. Most often, I purchase fairly slow, quiet music, such as classical piano, adagio and lento, where even small flaws can be very annoying and render a piece unusable. Amazon's refund policy seems a sound business practice to me.

Unfortunately when I complain about quality issues at Apple's iTunes Customer Service, they are usually arrogant and refuse to do anything. "All sales are final" is now the mantra. No second downloads, no credits, no refunds. "We Don't Care Because We Don't Have To" might as well be their new motto. Remember old Ma Bell?

This seems a new policy at iTunes over about the past year. In the past it was not like this. Over the years I purchased well over 1000 tunes at iTunes and when I found a piece unlistenable with what were evidently recording flaws, lapses, I expected a refund or credit for a flawed product. I did not abuse this: I calculate that I found only about 2% of my iTunes purchases unsatisfactory.

Until Apple changes current policy, I am not buying another tune here. What are your thoughts on this?