Hi @VikasKumar21
Thank you for your post and welcome to the Community Forum!
I am sorry to know that you're finding it difficult to add an email address. This might be due to some glitch, in this case, I would recommend you to clear cache and cookies then try using a different browser which would also help. Here's the link to add an email address. If the issue persists, kindly reach out to our customer support by clicking contact at the bottom of the PayPal website.
I hope this helps.
Ayesha
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