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I will tell you right now that paypal did something like this to me as well I never received any goods from a seller and cause the seller provided tracking information they still ruled against me and let the seller get away with things. Apparently all you can do is to call paypal to get them to change it to " significantly not as described" and hope paypal rules it in your favor when you provide the information again. Lately even in all these community posts paypal hasn't being helping their victims at all.
You are only allowed 1 dispute per transaction so the only way you can get a second dispute opened is to contact Paypal (when and if you can) and see if they will open a second dispute for you.
They may decline citing policies but if you say what happened then they might open a second dispute for you.
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?