I have been paying Atlantic Electricity on Direct Debit since Sep 2007. We were paying a flat rate (perhaps too low) of £29.00/month. Now they say I owe £432.87 which they will claw back with an increased Direct Debit. It seems fine to me, but want to check exactly what I am paying for and how much elec I am using. I always find these bills confusing. I seem to paying two rates Standard Energy Units and Discounted Energy Units, not sure what they are, is it for use late in the night (economy 7 type thing) or something else - I should know - but I don't.