From their website:
From 6th August - 21st August we will be away visiting family in Kuala Lumpur. I will be doing a "last post" on 5th August.
Charlie Foxtrot FB page: Orders may be placed while we are away and will be processed in date order on our return.
That would explain the lack of email response recently. They have posted on FB in the past couple of days, so might be worth another try.