Npower

chanz4

economy 7 is likely why you have x2 for electric?

D_M_E

The old account was for both gas and electric, the new account is electric only.

Npower split a dual fuel account into 2 separate accounts, one for gas and a second account for electric.

Therefore, since you are in debt to Npower, there must be a debit on each section of the old account, one debt for gas and a second debt for the electric part of the old account.
The second electric account will be for your current electric only supply.

This is most likely why you have 3 accounts listed.

sassy_one

Yes, you can switch your supply lawfully and legally, long as you don't have more than a £500.00 balance debt with your current supplier.

If you do, bring it down to £500.00 and you can switch without them stopping you.