I'd be glad to help you fix this error, Oli and JTOCD.
The error code 81624 usually occurs when you enter an invalid address or the information entered doesn't match your financial institution.
Let's go to your profile and review your subscription details. Update your payment information if necessary and ensure your billing address is correct.
Here's how:
Log in to QuickBooks Self-Employed in a web browser.
Go to your profile ⚙ icon and then choose Billing info.
In the Payment Information section, click Edit ✎.
In the Wallet list, modify the payment method used for QuickBooks Online billing (expiration date, billing address, and account holder name).
Save the changes.
The payment method will then be shown in the Payment information section.
Thank you for your reply. I am afraid I have tried following your directions several times but without any success. The billing info (expiration date, billing address, and account holder name) are correct, I enter the CVV code and then press subscribe. I can't see any save button to press. However, the same error message, "We couldn't process your payment. Make sure your billing info is up to date. If the issue persists, please contact support and reference this message. (Error code:-81624)" comes up in red at the top of the page each time.
If it is relevant, I have had the same problem trying to pay using this debit card for something else online. Have you got any other ideas? I'm just worried that I won't have started the subscription before the Black Friday offer deadline later today. Please help.
Hi JTOCD, thanks for trying those steps - please log into your Intuit Account and check that a full address that matches the payment card is entered in the 'personal info' tab. Once saved, re-try the subscription. If you continue to receive the error, please either use a different payment card or contact your bank provider to see why they aren't relinquishing the funds. 🙇♀️