Will customers see duplicate charges even though merchant service statement shows only one charge?

We're aware of the duplicate charge issue when processing customer payments, @marji1.

Rest assured, our product engineers are actively working on a solution regarding this. The current created ticket for this one is INV-50348.

Meanwhile, I suggest reaching out to our support team so you'll be added to the affected users' list and they can link your name to the said INV. This way, you'll receive an email notification once the fix is available. To achieve this, you can refer to this article: Contact Payments Support.

To ensure your concern gets addressed on time, please review our support hours guide.

Also, I'll be adding this handy resources if you've got other questions about QuickBooks Desktop Payments: FAQ about QuickBooks Payments.

We appreciate your patience while we're working on this matter. Just comment back below if you have more questions so I can assist you. Have a great day.