Hi again Ashleyb318,
We want to help you as much as possible. Review the section of this article that states "Get help if your device is lost or stolen" to see if you previously permanently removed the ability to pay from your iPhone with Apple Pay:
Manage the cards that you use with Apple Pay
You may need to call your card issuer to remove any restrictions that were placed on your card as well.
Here are a few questions that may help other users assist you with this issue:
1- What happens when you try to use Apple Pay?
2- Do you receive an error message, and if so, please provide us with the error.
3- Are you able to use your debit card with any other services and to make any other purchases at this time?
Best Regards.