My Direct Debit is currently on a three-month 10% discount holiday, following a DD amount increase I found excessive. One of the reasons I found it too high is that I fully expect to receive the Warm Home Discount on my account in November or December as I have for at least the past five winters.
My new DD amount was set online on 12 August, and the first DD was taken on 27 August. I understand that the DD review takes place automatically ‘every three months.’ in my case it could make a big difference if the review takes place on 12 November (three months from confirmation of the amount) as opposed to after the third monthly DD is taken on 25 November. Past experience tells me that by that date, it should be clear whether and when the WHD will be applied to my account, with any luck rendering a change in the DD amount unnecessary.
tl;dr
When does the clock start ticking for the three-month DD review?

