The Professional Couriers — worst experience - customer service

I have sent a courier from Chennai to Hyderabad on Tuesday. It has reached the Hyd hub on Thursday morning. When I tried to reach the customer care number Hyd as well as Chennai, the customer care executives who attended the call doesnt have basic manners on how to speak to a customer. Even after saying that it has medicines to be delivered today, there was no proper response from that lady.
Even if we would had sent through speed post it would had reached the destination properly.
We paid and we wanted to beg them to deliver the courier on time.
All delivery executives as well as customer care executives are worst.
I don't prefer professional courier anymore.