who says they have my legal name? my address can be written correctly in about 10 permutations (only the postcode truly matters) my email addresses are unique

who says they have my legal name? my address can be written correctly in about 10 permutations (only the postcode truly matters) my email addresses are unique per retailer and end in one of several tlds my birthday actually does look the same most places, 1970-01-01 , I'm 54 according to most shops, and receive discounts at the beginning of each year.