Just thought I'd update this thread with an informative comparison of a recent refund experience I went through.
American Airlines retimed their daily JFK-BDA service, from a morning departure to the evening. This affected an upcoming booking, so I decided to cancel and book a Delta service. Here's what happened.
1. Called AA. Got through to a person within a minute.
2. Explained that the retime was unsuitable and I'd like to go for a refund.
3. She said yes, it's a 9 hour change, definitely qualifies for a refund. Advised process for submitting the refund.
4. I completed the process online.
5. About day later got an email saying they had issued the refund.
6. Funds were credited back to the card in full within a week. No chasing up required.
So AA can do it. Why is it so difficult for QF to perform prompt refunds for the correct amount?
I appreciate that this situation is quite different to the OP's, but many others have recounted stories where QF has stuffed up straight refunds, requiring multiple follow ups over weeks or even months.