This is helpful: https://www.paypal.com/us/selfhelp/article/how-do-i-turn-off-receipt-notifications-within-facebook-messenger-faq3406 I used the Facebook Messenger webpage and deleted the conversation with PayPal. I don't know how Facebook got access to my PayPal account, and I worry that there may be some memory of this connection within the bowels of both FB & PP.
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