How do I find out which (of my many) card(s) on my Apple ID a subscription charged to?
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... because I have this exact question and the reply there isn't helpful at all because it assumes that there is only one single card and then it's easy. The answer given there was:
On your iPhone open Settings ➔ Apple ID (Your Name at Top) ➔ Payment & Shipping ➔ Here you will see your card listed under Payment Method. That is the card that is being used to pay for subscriptions that you purchased from the App Store.
But I see Apply Pay and my two Mastercards in that list - one is private, the other is business, and with Apple IDs not properly supporting separating private and business transactions (but it's also not feasible to use different Apple IDs to separate business from private), it's a bit of a mess.
What makes things worse: There even is a "Current Subscriptions" section when tapping on my Mastercards. But that only shows one single subscription for each card - but I have six active subscriptions. And when using "Manage Subscriptions", I see all my six subscriptions on both cards, and going into the details of each subscription doesn't tell me which card is used for this specific subscription.
"Apply Pay" doesn't show any subscriptions, only "Open Wallet".
So ... How tf do I find out which (of my many) card(s) on my Apple ID a subscription charged to?
iPhone 12 Pro, iOS 16