Hello @effyzaz
Thanks for posting your inquiry in the PayPal Help Community and welcome!
Sorry to hear that you're not able to update the information in your PayPal account. I suggest you to try some troubleshooting steps like clearing your cookies, history, cache, etc. from your browser or using a different browser/device to see if this works. If the issue persists after trying these, please reach out to our Support Team to look into this further.
Hope this works and have a great day!
Bindu
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