... The problem for the biller is that theres a cost to process which is at least $0.10 depending on how they calculate it. The gateway has a click fee and so does the bank. If you're doing $0.01 transactions then its a giant red flag. You'll also throw out their average transaction amount and lifting their transactions which is a red flag for them, the bank and the gateway. Its got "risk" written all over it. Theres also an issue with Chargebacks for both sides. If you ever had to dispute the bill with BWA, how would you do it? ...
Paying bills with 1¢ increments in such a manner would likely benefit QFF; similar with BankWest- so neither of those entities would be looking to shut such activity down based on that premise.
That leaves the Billers - I am thinking this activity may have a perverse aspect in that it could distort KPI's and other statistics in such a manner to be beneficial for certain managers or departments such that they are not interested in shutting it down.