I'd picked up the fact that they're having difficulties via their Facebook page. I can understand that a small company might struggle in those circumstances, but to have no response at all (except an automated email reply telling me they'd reply within one working day) is a bit much, especially given that my credit card was charged about 3 weeks ago.
Even a generic email telling me they're struggling, or a statement on their website to that effect would be been better than nothing.
I'll try calling* again, but if there's no response I'll have to see if I can get my money back through my credit card company.
*Talking to one of the people who answered my call I believe the phone number goes to a switchboard who deal with more than one company and they just pass the messages on.
There's still a slim chance they can satisfy me, but I strongly suspect that they won't. If that is the case they'll have lost a potential customer for ever. Which will be a shame.