India Post — letter not delivered/lost

My debit card was sent through india post speed post on 6/3/20 and when i tracked it, i found it had reached the nearest destination postoffice on 9/3/20 but when i went to the post office on 12/3/20 and again on 13/3/20 the postman could not locate my parcel in his own office and told me to leave. India post is ignorant and is not safe. The postmans are not responsible for anything even if something gets lost. India post had lost my parcel. Worst