I went to interview in the month of Dec 16 2017.had levels of ops round then versent test and got selected.they that joining date will be on 22nd of dec.then changed to 19th of Jan then 29th of Jan then 5th of Feb then 12th of Feb and again they called on 15th that 19th would be the joining date but have take up all test again.waste of time in spending for interview in sitel