I believe i already addressed this point earlier, but here it is again in case you missed it:
A courier has a couple of choices when they join us, they take any work from us when it comes along and also advertises their services direct to customers as well. Or, they choose to act as a sub-contractor only, preferring someone else to handle all enquiries, quotes, bookings, credit risk, customer service and everything else that goes with it. And that is the service we offer, we use the couriers address to advertise that we have a courier available in a particular area, we do all of the above and the courier does the pick up, it's a business arrangement and the courier get's his/her cut out of it.
I call it offering a genuine service for couriers who wish to be an 'owner driver only'.
The key point is, they have a choice. If a courier wishes to tout for business, as well as taking any sub-contract work from us, then they can do that and we are completely fine with it.