Overcharged and ******* customer service

<p>I bought a game from PlayStation online, and the transaction ended up going through SIX TIMES! By the third time the transaction went through, my bank (Discovery Card, South Africa) cancelled the following 3, and made a refund to me. PlayStation HAVE NOT REFUNDED ME, and although there was initiall communication with me from customer service, THEY HAVE NOT FOLLOWED UP WITH ME, OR RESPONDED TO MY LAST 6 OR 7 EMAILS. GIVE MY MONEY BAC****</p> <p> </p>