I can’t update my apps on my App Store

If you can't make purchases or update apps, including free apps, you need to update your payment method or add a new one. 

Or 👉 Sign in to your Apple ID account page and edit your Apple ID details.

https://appleid.apple.com

On the Sidebar click Payment methods -> then tap Payments Methods and tap Manage payment method.

Or use another payment method: Add money to your Apple ID balance

Add money to your Apple Account balance - Apple Support (IN)

See also -> Payment methods you can use with your Apple ID

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

Try signing out of the App Store/iTunes, restart, and then sign back in. Check the updates to see if the apps requiring an update are in your Purchases History. If they aren't in your Purchases History, you can delete the app, and download it using your current Apple ID if desired. You may have to restart before you can download the app again. Or you can try setting up Family Sharing between the two Apple IDs. If the apps are in your Purchases History, contact iTunes Support. 

Purchase History Review  *

Family Sharing.   *

ASC YouTube for Family Sharing

Family Sharing - Set up.  *

Family Sharing - Set up on iPhone.  -

See the Apple Support articles below for contact information.   

iTunes Support – world wide   -

Apple Support schedule phone call   -       

If necessary, try Twitter

Apple on Twitter   -