WU® Pay by Western Union is an innovative alternative payment option that allows consumers to shop online and pay cash, using online bill pay.WU Pay's retailers include top online merchants such as Sears, Kmart, and TigerDirect.com. In addition, the WU Pay Gift Card Mall is the leading online shopping site for prepaid cards and gift cards. Western Union is proud to present online payment services offered by WU Pay, a Western Union company.