Rejection letters will not be sent out. There is no further communication with you if you are not selected, just like with the rest of the elimination rounds. Although this has now become standard practise adopted by some employers, the system is seriously flawed. Apparantly despite being in the service industry, they dont think it common courtesy to let you know the status of your participation in an exam/ interciew they conducted. All it takes is for them to write a draft letter and email them out en mass.