Have you used the details on their web site?
- email: support@emma-sleep.com.au
- Tel.: 02 7202 0780 ← edited from their international format number as presented on their web site.
- Mondays to Fridays 09:00 - 18:00 AEST
The presentation of their contacts (eg +612 in lieu of 02 for a NSW number) as well as AEST suggests the call centre might not be onshore. Or might be?
Note that they have been closed since the 20th (Fri at 18:00 AEST) until today. FWIW responses from web forms on many companies often take 5-7 business days.
Ring the number above and have a chat, or is that the one that was disconnected?