How on the homepage there is a message saying: "Our monks are upgrading the server for you"
There's also an added text/statement on the website, contradicting the mail they had sent out (I don't get it everytime I open the site though).
A recent email was sent out claiming HolyTransaction was shutting down at the end of September, and we would like to apologize for any confusion this has caused.
We have good news though: HolyTransaction will stay up and running!
To ensure maximum security of our service, we are rebuilding our system in new machines Unfortunately that means we will need to be down for the weekend. We will be right back up and running with even better security and stronger service! We truly appreciate your patience and understanding.
More news will follow on our upcoming plans and our work on our infrastructure, so stay tuned! Thank you for your continued support.
Best regards,
HolyTransaction Team
Seems they're planning to stay in business (or at least claim to be).