can i go to court against paypal because,paypal knowingly i mailed items to buyer and wrongfully billed my account and asking to pay me off $14801.50.

Hello Good Day, after i provide all the tracking information(9 different packages-but USPS don't provied delivered status to certain countries,(Azerbaijan))Buyer filed claim/dispute thru Paypal. so paypal knowingly i mailed these items and billed me $14,801.50 to my account and asking me to payoff something i already mailed. I spoke with their customer service via emails back and forth explain i can provied all these purchase receipts(all of them are i phones and i have all the details.like, purchase receipts,pictures and the text massage conversation i had with the buyer) also i purchased all these USPS shipping labels thru Paypal and even i called Paypal customer servise regarding this transaction before i got recieved money from him,just to make sure i am protected as a seller also can i trust him as a buyer.so who ever i spoke with recored line she said i am protected. Also i requested from Paypal do fair investigation include his Paypal history and mine,I am selling here