How do I cancel an Apple Music Subscription when 3 free months are over?

Click here, follow the instructions, and wait for it to expire.

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Or you could be like me and find out by receiving an invoice for the "free" subscription you had forgotten about. Yeah, my fault for being lazy; but that doesn't remove the bad taste of up-sell, freemium, bait-n-switch left in my mouth.

Really, Apple? No courtesy email? I hope you enjoy my $10.95, because that's all you'll be getting out of me ever again...

Call Apple and ask for a refund. They are not evil.

No bait n switch or upsell involved. You signed up of your own free will.