I'll help you correct the payment, Jmc5309.
We have different steps to fix it, depending on your scenario. Based on your situation, you have to move the deposited payment to the correct customer. I'll share the article with the detailed steps, then follow Scenario 1.
Although, if you're unable to move the payment, I'd suggest reaching out to our customer care support. An agent will help you match the customer names. This way, it will be paid to the correct one. Just open this link, then click Chat with us or get the number under QuickBooks Desktop with Payments.
I'll also add the QuickBooks Payments FAQ as additional information.
If you need more help, please feel free to click the Reply button below.