I understand that this situation you are currently in might be frustrating and I have personally been there ... with flight cancellations and not getting the right amount of SC (or DSC, for that matter).
If the email is not taking you anywhere - trust me, it never got me what I wanted from QF, ever. So I'd be picking up the phone and having a chat with the CSO. Now, in the times of the pandemic we are in, I realise that it would be next to impossible to get someone from QF over the phone to look into your issue. But I have had some success in getting someone from QF over the phone.
I had to call up after 11 PM AEST. I think this is because the call gets routed to an offshore CC and there will be someone to answer the phone with limited wait time. In my case I had to wait 4 minutes before someone answered the phone and was more than happy to get my issue sorted.
Now, I also realise that staying up that late to get SC from QF might not be everyone's way to go, but, I usually stay up late and so picking the phone that late was also not an issue
Good luck !