Told by who ? In relation to which *A carrier and which route ? I don't think that there is a uniform rule across the whole of *A regarding when , or indeed whether , redemption seats in business are made available for a particular date/route/carrier . Bear in mind that for some dates/routes there may never be any redemption seats made available by a particular carrier . If you were to provide a bit more information about what it is you would like to do ( and through which mileage programme ) you are more likely to get useful answers . In any case , good luck , I hope you get what you want .