Royal Mail, which we use to send 99.5% of our orders, put up their prices at the end of April – and as a result, on each of the past three weeks, we've lost money on postage, mostly on small orders.
So, much as we hate to, we're going to have to alter our postage charges structure, effective immediately.
We've written a post on the blog explaining in a little bit more detail, or you can see the new rates on the Ordering page.