發送短信 : Why do merchants accept payment cards?

  _____     _____     _  __   __   __    ______  
 / ____||  |  ___||  | |/ //  \ \\/ //  /_   _// 
/ //---`'  | ||__    | ' //    \ ` //   `-| |,-  
\ \\___    | ||__    | . \\     | ||      | ||   
 \_____||  |_____||  |_|\_\\    |_||      |_||   
  `----`   `-----`   `-` --`    `-`'      `-`'