9d049bb1_Bill___Help___Support___npower__Monthly_Direct_Debit
[0] Overview You pay for what you use each quarter straight from your bank account. [Receipt of Bill] You pay for what you use each quarter via cash, cheque or card. [Monthly Direct Debit] 
You pay the same amount each month straight from your bank account.
Paying Your Energy Bill | Help & Support | npower
Monthly Direct Debit