Where is the Customer Service Dawn Wing?

The absolute worst Courier company ever. I ordered something which was collected by Dawn Wing Couriers on 1 February and I have still not received my item. I have called the Dawn Wing helpline 7 times already and have been cut off 5 times. The one time I got through the lady said someone will call me to sort it out but nobody from Dawn Wing has called me. The last time I called I asked to speak to a manager, and when I was put through it said all lines are busy, goodbye. The customer service is an absolute joke. Will never use Dawn Wing by choice. Terrible.