refund

[SaintRoy]

The dispute ended because I sent the ordered product.
If a mask that has not been ordered comes and I want to dispute again, but the case has already ended and I cannot dispute again, what should the buyer do?

[kernowlass]

@SaintRoy 

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 you made a mistake 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?