Blue Dart Express — delay in delivery

It is sad to inform you that i submitted my courier by fast delivery dated on 26/09/2018 and as per your officials commitment the courier will be delivered at kolkata dated on 27/09/2018. My consignee mr. Shibu das is waiting for the courier (As courier contains medicine) as he is suffering from chronic depression problem it is very important to reach medicine by 27 of september 2018. I had made several calls to your call centers and office but nobody is giving a satisfactory response. I am very upset by your service. At good faith i have submitted my courier at but now i m very much disappointed by your service.

Thanking you

Regards
Mrunal belsare.