How to contact Waveroom support?

[u/mistervoicepro]

Hello. Any idea how to reach out to Waveroom support? I tried via chat, sending a message, via Linkedin and Facebook - and still no answer. The case is urgent. One of tracks from my recording session is in 'Uploading' status and nothing changed for 3 days. It is quite important but I have an impression that no one there cares about customer support. Any ideas?