Hello @FritzS, sorry we seem to have missed the original post
This sometimes happens when several e-mails bounce back to the server (full mailbox or some random glitches, spam-filters), then the server stops trying altogether so to say.
I have asked our dev to check - @mikhail.trusfus, you should be all clear now, you might want to check, whether online-go.com did not trigger some spam filter, but the e-mails should start coming again,
FritzS, unfortunatelly your account seems to be clear on our end (though it could have possibly reset thanks to the e-mail switch), let me know if you would preffer to try again with the old e-mail, if you switch back and it still does not work, we can have another look.
And sorry again for the original neglicence