I can only think of two reasons AGL would want people to pay monthly, and I'm not suggesting anyone here present or past is in the first group . . . 1. Consumers / customers with bad paying habits, always paying late.AGL could follow up sooner, have smaller sums to collect, and improve cashflow.(Edit, of course if late payers continue to not pay on time, they will get hit late payments every month too, which AGL would get on top of payment amount, not a big reason for them I feel, but a little e ...