Dell Technologies Customer Service - Voice interview questions

Dell conducted a job fair in Kochi, Kerala. Had 2 HR rounds, one telephonic round and one management level round. I was told that I got selected and HR will contact me to complete the joining formalities. HR did call and asked me to come down to Chennai and complete the joining formalities. I gave my notice period to the company where I was formerly working and set out to join Dell, Chennai. After completing the formalities, HR team told me to go back to Kerala and they will mail me a link which I have to fill so that I can join in a week. I called and messaged them multiple times to send me the link so that I can find a hostel in Chennai and settle down before joining. No response. One lady in the HR team practically shouted at me saying that they will call me when everything is ready for me to join and that I should stop disturbing her. Its been almost three months and I have not yet got any call. I lost the job that I had and now I am unemployed because of Dell and their very efficient HR team. Do not trust this company as they will give the offer letter only on the joining date and there is no guarantee that you can join.