Trackon Courier — untimely and sabotaged delivery of couriers

i live in deoghar (jharkhand). i an sent regular couriers from delhi and hyderabad. these couriers are sent through trackon couriers but are never delivered timely and in proper condition. when we track couriers we find that the courier is lying at the local office but the office incharge denys to accept the fact. the couriers are delivered after 2 to 3 days of reaching the local office and the reason given is the unavailability of courier boy. we are also asked for extera money for delivering couriers. when we made a request that please call and inform us if our courier arrives but in vain. the office incharge acts rude. i want serious action to be taken against the trackon office at deoghar. i want a written apology too. please look into the matter and take necessary steps at your earliest.