AliExpress Purchase Coded as Cash Advance

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RESOLVED///
I reached out to AliExpress, and they say they didn’t change their payment methods on the backend so to take it up with PayPal, who is also not taking ownership. I called my credit card’s affiliated bank (Chase) again, and the rep waived the fee for me this time–I have good credit history and have been a customer for 10 yrs so YMMV. Also, my previous call to Chase was unsuccessful so you might need to call a few times and hope to catch a nice rep. Good luck to everyone except PayPal, who NEEDS TO STEP UP WITH THEIR CUSTOMER SERVICE.
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I’m in the US and recently purchased an item off of AliExpress for the first time. I couldn’t find the item I was looking for elsewhere on the web, and since they had a PayPal payment option, I thought maybe it would be safe enough. I paid just shy of USD 7 for the item.
Fast forward a few days later, I noticed that the credit card affiliated my this PayPal purchase had a USD 10 transaction fee–I called my bank, and they said it’s because it was coded as a Cash Advance.
I reached out to AliExpress and they said to talk to PayPal who processed it. I filed a dispute with PayPal under « billing issue » because none of the other choices seem any better–I included a copy of my purchase receipt and a screenshot of my credit card statement showing the extraneous fee. Today PayPal just denied my name because it’s « not a billing issue ». Could someone advise what I should do? Out of principle, I do not this it’s right for me to be charged this fine because some weird billing on the back end.