The checkin staff couldn't find any reference on their system to the (small!) excess baggage arranged for my quilts, so I have paid an excess to get them down to Heathrow where I'll need to collect them and transfer them to the Quantas desk. Still, I guess it means I'll get to see my bags once in transit! Glad there is enough time at Heathrow to do this.
Hope rest of travel goes smoothly.
2 hours ago