Fastway Courier the worst Courier company to trust with your parcels

The worst service you can receive from a courier company. I have signed up my business with fast way to deliver my clients packages , from day 1 they have been giving me endless issues , they outsourced driver don't care to collect parcels , they driver are rude to customers when delivering , parcels are sent to all different incorrect depo, when you call for assistance they just keep cutting the calls, absolutely no person is willing to assist with any queries. How does a huge company continue to operate in this manner.