Late edit as I misread sorry..
Have you submitted readings?
If you think your direct debits are set to the wrong amount go to help, ask wattbot, type message the team and ask them to review your payments. You should, after paying the direct debit, have an approximate balance of about a months average payment, so about £60 in your case.
If you're electric only, £30 after deducting the membership fee leaves £22 for energy, which is about 1885kWh a year.
What was your annual estimate in kWh?
Apologies for earlier reply if any remnants remain.. it was wrong
Originally Posted by Carljacks