People ring about a meter box the way they ring about a power point, and it is a reasonable assumption: it is a box on a wall, it holds a meter and some breakers, and it needs to be over there instead of here. The physical work really is close to that. A day, mostly.
What surprises people is that the box in front of them is the meeting point of three separate ownerships. The service line from the street is network infrastructure, and in New South Wales only an Accredited Service Provider is allowed to touch it. The meter bolted to the panel has belonged to your retailer, through their metering coordinator, since metering contestability began in December 2017: it is not the network's and it is certainly not ours to unbolt at will. Everything past the connection point is your installation, and that part is ordinary electrical work.
So a relocation is a coordination problem wearing the costume of an electrical one. The retailer has to raise a service order. The metering coordinator has to deal with the meter. A Level 2 ASP has to de-energise the property, move the service and re-energise it. Your network operator, Ausgrid across most of the North Shore, owns the connection at the far end of it. Get the order wrong and everybody turns up on a day when nothing can proceed.
The single most useful thing you can do is settle the new position before anything else is booked, because the metering rules are quite specific about where a panel is allowed to sit, and a position that fails is a position that cannot be quoted, ordered or scheduled. That is the next section.