How can I delete a payment from customer that is appearing several times?Why am I being charged for an online payment from customer that never happened?

I'm here to guide you in handling your income transactions to maintain the accuracy of your financial data, info.

Let's start with your duplicate payments. Such transactions will appear multiple times in your income statement when QuickBooks Payments processes them and you also did a manual record in your account. Once you're certain that these entries are duplicates, delete them by following these steps:

1. Go to the Sales menu, then select All sales.
2. Filter the transaction Type to Money received.
3. Find the payment you want to delete.
4. In the Action column, select the dropdown, then choose the Delete option.

On the other hand, QuickBooks Payments will only charge a fee once an online payment goes through. With this, I recommend checking your Merchant account to verify why you're being charged. Here's how:

1. Sign in to the Merchant Service Center.
2. From the homepage, select Activities & Reports.
3. Choose Fees.
4. Select the date range in the Dates field.
5. Click Search.

For more details about finding transactions in the Merchant Service Center, please see this article: Locate deposits and fees in the Merchant Service Center.

Also, I'm adding this article to learn more about how QuickBooks Payments handles your deposit and funds: Find out when QuickBooks Payments deposits customer payments.

Let me know in the comments if you have other payment and sales transaction concerns in QBO. I'm always around to help.