@Jam57 A dispute for an unauthorised transaction is telling paypal that your account was hacked and used without your consent to make that transaction. Paypal would check IP addresses and devices and close the dispute if it was you that made the transaction which it was? You are only allowed 1 dispute per transaction so the only way you can get a second dispute opened is to contact Paypal and see if they will open a second dispute for you. Your best bet is to open a dispute for a billing error? If not then if you funded your paypal payment via a credit card then consider contacting your card issuer and see if they will help you with a chargeback?
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