REMOVING ADS

HI...I WOULD LIKE TO KNOW HOW TO REMOVE AND ADS OR FUTURE ADS WITHOUT USING THE FORUM TO DO SO. I POSTED AN AD CONCERNING THR RECENT STABBINGS IN CUENCA AND THINK IT SHOULD BE REMOVED NOW SO I'D LIKE IT GONE. YOU SAID THE WORD YOU NEED TO TYPE IN TO FINISH IS CASE SENSITIVE I HAVE TRIED BOTH CAPITAL LETTERS AND SMALL AND I'M ALWAYS TOLD TO RETRY GETTING KNOW WERE...CAN YOU PLEASE REMOVE MY AD BY ARRON. THANKS, ARRON