How to check your receipts in iOS
As purchases in iOS are done in the App Store, the Mojo team cannot issue invoices directly. You can retrieve your receipts directly from your Apple account. To access your recent receipts go to: reportaproblem.apple.com and sign in with your Apple ID.
A list of your recent purchases will appear. When you find the transaction, click on the transaction ID on the right and it will open a menu with details of the transaction. Then, you can click on "See receipt".
If you can't find an item in your purchase history at reportaproblem.apple.com, check the purchase history in Settings on your iPhone, iPad or iPod touch. Or check the purchase history in Account Settings on your computer.
If you cannot find your transaction or you have questions about your receipt you may contact Apple Support for help as from Mojo we don't handle the payment of your subscription.