Second series?

I really enjoyed this sitcom on the whole, short as it was, and read an article last summer saying that it had been commissioned for a second, 6-part series on BBC2. However, it's not October the following year and there's no sign of it. Did it get cancelled, or is it still on the way?

I can't imagine it being a really expensive show to produce, as it's all on one set, and with a pretty small cast.