Welcome to the Community, and thanks for alerting us, @The Parts Man.
I can help you enable your QuickBooks Payments preferences to receive notifications when your customers pay through credit card. In your case, I suggest checking your email folders first, like your Spam and Junk folder. If it's there, move the email to your Inbox. If it's not, I recommend adding QuickBooks Payments to your contacts. Feel free to read this article for the directions: Unable to receive Intuit email from QuickBooks Payments.
Then, you should receive an email within an hour when a customer pays by credit card.
Additionally, you may check out this link on how to run on or off customer notification emails for recurring payments: Turn on or off Customer Notification Emails for Recurring Payments.
Furthermore, I'd like to add this article on how to check payment status: Find out when QuickBooks Payments deposits customer payments.
Please tell me how it goes. If you have other QuickBooks payments concern, feel free to comment. Take care, and more power to your business!