If you call the customer services they will make the necessary appointments with the agents, you pay them (the Audiologist) for the mould taking and send them to Ultimate who will take their impression taking charge (£10) off the cost of the product you choose.
UE make the arrangements. Talk to them about where and when, they make the appointment, you go along and pay the audiologist directly (cost me £15), and then send the moulds to UE. Waiting for my monitors to be delivered.