how do I update credit card info. for purchaes

Hey dewarner,

Thanks for participating in Apple Support Communities. We recommend taking a look at the following guide to check with payment methods you can use with your Apple ID: Payment methods that you can use with your Apple ID - Apple Support

Then, use the following to help update or add a payment method. Please note, to remove an old payment method you must first add a new one:

If you need to change or update your Apple ID payment method - Apple Support

Add a payment method to your Apple ID - Apple Support

We hope this helps.

Take care!