Best answer by Darran_OVO
In regards to your question, the first direct debit would normally be taken pretty soon after the date you come on supply so it sounds unusual that you thought it would not be taken until the 30th October. Sometimes though, the Direct Debit date can be set just before the supply start date, but you'll always be notified of your Direct Debit date ahead of the switch.
It would be worth checking all the emails and letters you will have received from us as you should have received an email, probably a week or two before you came on supply to advise of your first direct debit date. If you don't see one, its always worth checking your junk or spam folder just in case it ended up there.
Let us know how you get on, any other questions feel free to search the forum or comment below.