During the Christmas / summer period we sometimes get a net credit from AGL for our Solar Savers plan i.e. we sell more power back t than we use. Looking at the bill, AGL appears to be applying a credit card charge based on the amount of power bought from the grid even though they are not doing a credit card transaction (because they owe us more than we owe them and the credit is just carried forward to the next billing period). In addition I guess it seems odd that AGL charge us as a customer f ...