I have a charge on my card and I would like to know what the charge if for?

If you cannot identify/verify the charges after reviewing See your purchase history for the App Store or iTunes Store - Apple Support, and If you see "apple.com/bill" or an unfamiliar charge on your statement - Apple Support, you should report the fraudulent charges to your card provider.

If the charges do not appear after reviewing the previous two links. Contact your card provider to report the unauthorized/fraudulent charges.

I was looking at (heart rate me )didn’t realize it cost I canceled and still got charged $90.90 I would like this to be refunded I’m not paying this