received a letter in a air mail envelope c/o TMF orchard post office po box 51 singapore 912302 stating if i answered the coorect answer for 25+1 correctly i ma guaranteed to win 5000.00 on the back in very light print it asks for passport and signature the retuen address to send this info is the address in australia i looked up UBI on internet and many complaints about co stating it is a scam . read full review »