Can't complete into the future task???

Someone please help me! I'm trying to check the lotto records for the future guy but I can't because he gave me this same quest before. I have already checked the records and it won't let me check again. It says that I have to buy a winning lotto ticket in the present world. So I went back and bought not one, but three and it still does not work. I have tried deleting and replacing the town hall but that won't work. I can't go back to an earlier save file because I accidentally overwrote this one like five times in a row... How do I finish this quest??