Are you sure about the 2.00 meters ? That seems too low for a refueling point under the wing, unless you are indicating the "relative" (to the center of the plane) height. In the editor, you'll see the absolute (from ground) height and, it must be at least 3.40 meters from ground, in order to call the large fuel truck, the one with the crew and the fuel counter. This one will use the refuel point as specified in the airplane configuration.
Instead, if the smaller truck is used (because your refuel point is too low), it will always go to a preset position, ignoring the refueling point.