Can't download or update games on iPhone XR

If you want to make purchases or update / download apps, including free apps, you need to update your payment method or add a new one. 

•           If you want to change your card, add first the new card, then remove the old one.

•           or set your Apple ID balance as your default payment.

See also the following Apple articles:

Payment methods you can use with your Apple ID

Payment methods you can use with your Apple ID – Apple Support (UK)

Add money to your Apple ID balance

Add money to your Apple Account balance – Apple Support (UK)

If you update your payment method or add funds to your Apple ID balance, It would take about 1 to 3 business days in order to process.

If you're still unable to update your payment method, Contact Apple Support.

Click here for more support and assistance.

Check also ⤵️

Manage App Store purchases, subscriptions, settings, and restrictions on iPhone

Manage App Store purchases, subscriptions, settings, and restrictions on iPhone – Apple Support (UK)

Prevent in-app purchases from the App Store

Prevent in-app purchases from the App Store – Apple Support (UK)

Read this support article very carefully:--> If you can’t download or update apps on your iPhone or iPad - Apple Support

If the issue persists, I suggest that you contact iTunes Store Support Team directly, using this specific link:--> Apple Support

(if you get no help, look at the bottom of the above link, where you can contact them using "chat" or "phone" options).

Regards

Giulio