What does this mean? Do I have to pay the £30 on top of the £25? Why?
Best answer by Mark Pocock
That screen just means your account is currently 30.52 in debit (I.e. you owe that much). Your next DD payment is the agreed monthly payment for the warmer months based on your usage. You don't have to pay any extra money right now.
I am going to guess you haven't been with PP very long. That combined with an April DD payment being for a warm month but most still have the heating on means that your payments haven't quite covered your usage so far.
I would say that there is nothing to worry about right now and everything should sort itself out over the course of a year. If you find your balance getting further into debit over the next few months then you may need to request an account review (PP may choose to initiate one itself) as you may not be paying enough for your actual usage.