when i use a case in paypal, hi said that dispatch the parcel., but i did not get

[rolkisnauja2-uk]

 Hi,

Hello,paying money for goods.
when i use a case in paypal, hi said that dispatch the parcel., but i did not get. Seller is not responsible to the message.
What can i do?
thanks

Sorry, but never has it not done don't even know where to go, my English is not a native so hard understand, What should I do

Thanks