Incorrect information given - bad service

Was on the Netflorist website this morning so as to send flowers to my parents for their anniversary tomorrow and came across a special which states \***** someone's heart with 12 red roses in cellophane wrapping. Get a free gift box of Lindt 150g if you place your Valentines order with NetFlorist before 11th of Feb."I select 12 red roses but before i purchased online I called in at 09:39am to confirm that I will get the free chocs with my purchase and was asked what code the order was"