You got scammed.
EBay and Paypal have an excellent Buyer Protection Program, but there is a deadline of 45 days from date of cleared payment.
That passed long since.
So.
Go to the credit card you really paid with. PP is just the mediator. Phone the 1-800 number on the back of your card and ask about a chargeback.
Do not delay.
Cards have longer deadlines but rarely more than 90 days and never more than 120.