Genpact — Reckless behaviour of manager

Hi i have resigned genpact and last working day was on dec 10th but i was not able to submit on 10th .today i.e 16 dec i am at office to surrender my assets where they want a exit ticket number which i was not informed by my manager now where i am calling him and texting him he is not responding i was already calling him from past 2days where he doesn't respond. Just because an employee exit a company it doesn't mean u dont respond to her/his calls when they need your help. Completely unethical and unacceptable.Worst experience with genpact and would never recommend anyone else to work with genpact