Blue Dart Express — blue dart express not helpful office staff and very bad service

I had an courier sent to me, i have given them my no and address but it was not delivered to me so i try to connect the Ahmadabad branch via call but it was always busy and if it not busy then also no one pics it up. I also sent an email for that but no reply.But after some days i again called them and they say its returned to the sender. They didn't even try to contact me for the problem. Then i call to the customer care they also did not give me satisfactory reply and hang up on me. So, is this your hospitality ? No other courier service does this. This is the worst service i have ever seen.