First time I've had to call QF for a while, and having received a younger sounding person answer the call as Premium line, I figured to ask if they were based in HBA. Indeed they confirmed they were in HBA, and on further enquiry, advised that the Melbourne call centre had closed last week. Seems only a few people transferred to Hobart after the closure.
The agent on the premium line was able to (eventually) help me with my out-of-the-ordinary question (took a few on-holds to the supervisor), and hopefully their knowledge and experience will continue to grow as they encounter various situations, but it does make me wonder the wealth of knowledge and experience that walked out the door when they closed those call centres.