@ada2012 I e-mailed them (apparently I'm not allowed to post their email here) and explained my case to them and why I thought it was their mistake. A few days later they responded and said they will begin their investigation and send me the final results of the dispute. I don't remember how long it took but eventually my PayPal was cleared and good to go.
the email was
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^ remove the underscores, hopefully that makes sense
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