How do I find a receipt?

Here is a one-stop link for billing questions→Subscriptions and Billing - Official Apple Support. You can review your purchase history to see what you were charged for, cancel a subscription and request refunds.

You should have also received an email receipt for each purchase.

On your iPhone, iPad, or iPod touch

1. Open the Settings app.
2. Tap your name, then tap Media & Purchases.
3. Tap View Account. You might be asked to sign in.
4. Tap Purchase History.
5. Your purchase history appears. Tap Last 90 Days, then select a different date range.