Rediculous service from GFS express

The worst delivery service ever, they made me wait and loose 3days of work waiting for an important package. The online system they use is sporadic as you cannot track your parcel. When u call them you're placed on hold just to be disconnected. If any of the service providers uses them I WILL cancel my order immediately. You get refused to speak to a manager by Michelle the lady whom I spoke to last. I am the customer not one of your employees.