- Apple (iPhone / iPad)
This is a very common practice of Apple.
Sometimes Apple charges your card several days after the purchase was made
and they also group purchases made on different dates and charge them all at once as well,
you can learn more about it at: https://support.apple.com/en-us/HT201359
Hence it is highly possible that you were charged for purchases made on different dates all together,
I recommend that you recheck your purchase history at Apple to see if everything looks alright there:
1. Go to Settings > [your name] > iTunes & App Store.
2. Tap your Apple ID, then tap View Apple ID. You might be asked to authenticate your Apple ID.
3. Scroll to Purchase History and tap it.
And in case if something is wrong, we recommend you contacting Apple support with this problem
as Apple is in charge of all billing processes on the iOS platform