Hello there, @fancyjanes2454.
Before we can delete your QuickBooks Cash account, we'll have to zero out the balance. This means we'll need to transfer the remaining balance or you can spend it.
Once the balance is zero, I'd recommend reaching out to QuickBooks Payments Support. They have the tools to pullup your account securely and help you delete the cash account.
You can contact our merchant support through this link: QuickBooks Payments.
I've added this article for QuickBooks payment questions: QuickBooks Payments FAQ.
Let me know if you need anything else. The Community is always here to help you. Take care!