Worst company!

Worst company!
For QC position: when I attended interview they told you are selected and called for HR details and HR told me that she will accommodate me either in day shift or evening shift..after a week I received regret mail and then HR called me and told that it was by mistake and even after some days I didn't receive the offer letter and then I had to call HR to check what happened and then she says thr is no position open and it's only for night shift..! Irresponsible management to play with candidates emotion