Customer tried to pay invoice with Discover (twice) but notified me that quickbook refunded the money both times. How to fix this so we can get paid for our work?

Making sure you're able to accept customers' payments seamlessly is essential to having accurate sales data, @lonestarparadise. I'm here to help you fix it.

To start, could you tell me if there are any messages you encountered when the payments are refunded? That information is a great help so I can provide a timely solution. 

In the meantime, I recommend reaching out to our QuickBooks Payments team to further investigate the situation. They have tools to check the system and determine the cause of payment refunds. 

On the other hand, you can also advise your customer to use another payment method like cash and manually record it in the program. For detailed steps, follow this article: Record invoice payments in QuickBooks Online.

Should you need additional assistance in processing customer's payments, please drop a response below. The Community is always open and we're 24/7 ready to provide prompt reply. Take care. 

If they funds are being credited back it has to do with the client's card. I would ask them to use a different card or to give you the card information so you can process it yourself.