We have 1 customer who tried to make a payment and it will not go through. They tried multiple cards and still no luck. I deleted invoice and issued a new one same issue

I appreciate that your client did everything to fix the issue, Eric. Let me help you with the troubleshooting steps and route you to the appropriate support.

To start with, we can let your client contact the bank associated with the card they used when paying. That way, their financial institution can check why payments failed.

Then, if there were no issues after checking and the information matches, I recommend performing browser troubleshooting. This way, we can check if this is a browser-related issue. Using an incognito window can prevent your browsing history from being saved.

You can use the following web browsers:

• Chrome
• Firefox
• Internet Explorer
• Safari

If this works fine from there, your client can go back to their regular browser, clear your cache, and try the payment one more time.  

Furthermore, you can contact our Merchant Service Center after performing the steps above and the issue persists. 

Additionally, you might want to check this article and learn how to check when QuickBooks deposits customer payments into your bank account: Find out when QuickBooks Payments deposits customer payments.

I'll keep an eye out in the comments if you need additional assistance managing your payments. It's great to have you here.