Australian lottery
Eg. some clarification

I HAVE RECEIVED ONE MAIL THAT I HAVE WON $5, 00, 000 USD FROM DESK OF THE VICE PRESIDENT INTERNATIONAL PROMOTIONS/PRIZE AWARDS

DEPARTMENT AUSTRALIAN INTERNATIONAL SWEEPSTAKE LOTTERY COPORATION;WHEATHER THIS IS TRUE OR NOT . THEY ALSO ASK $605 USD TO GET THE AFFIDAVIT OF CLAIM FROM NIGERIAN HIGHCOURT TO TRANSFER MY PRIZE MONEY TO MY ACCOUNT.PLS GUIDE ME.