I am attempting to add my credit card to my Apple ID information and it keeps getting refused this is a good card the card was on the account and now they have told me I can’t use it

See the Apple Support article(s) below. Link to contact Apple Support in the article. 

Apple ID payment information - If your payment method is declined, or you have a billing issue with a previous purchase in the iTunes Store.    

Possible fixes.   Fix ‘Your Payment Method Was Declined’ Error In App Store

                          Payment method declined in iTunes or the App Store.

Contact iTunes Support for assistance. See the Apple Support articles below for contact information.   

iTunes Support – world wide 

Apple Support schedule phone call     

Billings and Subscriptions 

If necessary, try Twitter

https://twitter.com/AppleSupport.         

Also contact whoever issued the card to see if there is a problem.

Test with a family member's card.

See the Apple Support article(s) below. Link to contact Apple Support in the article. 

Apple ID payment information - If your payment method is declined, or you have a billing issue with a previous purchase in the iTunes Store.    

I had to get a new debit card because of a fraudulent charge on my old card. Got the new card several weeks ago and have been using it up until last night when I made a purchase in the ITunes Store and they told me that I had an outstanding balance on my OLD card, they declined my purchase. I had JUST made a purchase with my new debit card a few minutes before. This is very inconvenient for me and I would like it fixed right now.

I went to pick up a prescription this morning and they declined my card also!!!!!!!!!!!!!!!!

I can’t add another card it keep declining and I can’t purchase anything on App Store please I need you to help

Did you read what I posed above? Use the link in the article to contact Apple Support if necessary?

i need help reinstating my credit card information

What happens when you follow the advice in the post

by Eric Root to which you replied?

The Pharmacy does not know Apple is refusing your card. This means you need to call your card company and cancel the card; save the cancellation email. The, get a new card.