I have customer that has paid through the emailing o invoices and recently he is getting error that says to contact me to make payment. His card is charged then refunded

Glad to see you here in the Community, @info1028.

I've got some instructions to provide on what are the best things to do if your clients are unable to pay their invoices online.

If your clients are receiving error messages when paying their invoices online, they can access the payment link using a private window. This way, we'll be able to determine if the issue has something to do with their browser. The collected cache files on the browser can sometimes cause unexpected errors.

If it's now working, have them clear their regular web browser's cache. This eliminates unnecessary data and prevents this issue from occurring in the future

However, if the problem continues, I recommend contacting our Merchant Services Team. They have the tools to check on your transactions and help identify the root cause of this matter. They can also create an investigation ticket if necessary.

To learn more about processing payments and on what are the steps you're going to take if customers can't pay their invoices online, please see these resources: 

• Learn how you can help customers if they can't pay for an invoice you send them in QuickBooks.
• Take and process payments in QuickBooks Online

You can always count on me if you have any other concerns. I'll be around to address them for you. Have a great week!

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