Experiencing similar currently. Disputing a charge from a cancelled subscription (Curiosity Stream). Even with a screenshot showing my subscription was cancelled several months before the charge they are fighting me.

I TRIED to delete my Paypal account a year or so ago. They wouldn't LET me, insisting there was still an active payment though I cancelled/removed all payments and vendors.

I thought, well that sucks, but I just won't use the account.

🙄😤