Shree Maruti Courier Service — Behavior with Customer & Delivery

I want to complain regarding Nallasopara (East) branch service and behaviour with customer. (Mr.Vallabh & Mr.Rajesh)
We are one of the customer for the same branch, these people charge the amount as per there requirement, sometimes Rs.160/-, Rs.150/- per kg for normal courier. And surprisingly when the parcel is not delivered as per the desired time, they give reason as, "there is problem in the system", address was not properly mentioned.
We would like to inform Maruti courier service that, if we are paying high amount as per their demand, we should get the proper response, even they are not bother to reply.

This happened 3 to 4 times in 1 month period.

Please take the necessary action so that your customer will not suffer because of these guys.

Thanks