Can't add secondary Email ID

[ScienceAndSnark]

Hi, I need to add my old PayPal email address back in as a secondary email ID, but I keep getting the error message: Something went wrong. Try again. Contact customer support if you keep seeing this.

PayPal thinks my old address is being used by another account, but I am certain it is not.

Thanks in advance.

[PayPal_Bindu]

Hello @ScienceAndSnark 

Thank you for joining PayPal Help Community!

I apologize for the inconvenience you've experience with adding your old email address. I recommend you to try some troubleshooting like clearing your cookies, history, cache, etc. from your browser or try using a different browser/device. If the issue persists, feel free to reach out to our support team to look into this further. You can refer this article for the contact options : How do I contact PayPal customer service?
 

Have a great day!

Bindu