Why can’t I download any games or anything

Hi, you can try to force restart your phone: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then press and hold the Side button until you see the Apple logo.

Make sure that your phone is connected to the internet & download the latest iOS software, go to Settings > General > Software Update. Check this link: If you can’t download or update apps on your iPhone or other Apple device

Know it here ---> If you can't download or update apps on your iPhone or other ...

It keeps saying there is a billing problem with my purchase and I tried to put my card info in and retype everything but it still won’t let me download

Hi, if there is a billing problem, check this: If your payment method is declined in the App Store or iTunes Store

You can also call Apple Support so they can check your account: Contact Apple for support and service