Just checked our September bill and having deliberately built up a really decent surplus (£1200) over the summer, and in light of the upcoming Government energy payments) went to reduce our DD from £299 to £200 pcm. Got a message saying DDs can't be reduced online. I appreciate they will want to ensure that everyone has enough credit to cover the winter but surely that's ridiculous? I've now got to faff trying to get them by phone or on web chat when they will likely be snowed under with cap enquiries this month.