The update payment method does not process my paypal request. is there an email address i can send a complaint to

Hi laurawhiting30-g,

I appreciate you reaching out here.  Welcome!  It's important that you're able to update your QuickBooks Online subscription information, so you can get back to business as soon as possible!  I'd be glad to help!

If you haven't done so already, I recommend clearing cache on your browser, then log into your QuickBooks Online account in a private/incognito window, to see if you get the same result.  If the issue persists, I suggest trying other browsers such as Safari, Edge, Google Chrome or Firefox.  For additional assistance, please contact us outside of Community.  Our Customer Care team can work with you in real time, and ensure you're payment method is updated successfully.

Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Please reach back out if you have any other questions.  We're always happy to assist!