If you're silly enough to let a greedy company go on unrestricted plundering trips through your bank account, you deserve the robbery you're inviting. Case in point? Hydro One....
To be quite frank, I'm having a hard time understanding that post. I've been doing it for years and have found it cheaper than the alternative methods. My bank doesn't charge me any transaction costs. I suppose a younger person could opt for an 83 cent stamp plus the cost of getting to the mail box or to the business issuing the bill. Any plundering the banks might do is charging you a $ when you pay the bill at the cashier's cage. However if you do happen to know of another method of paying a bill that is cheaper than mine, I'd be happy to hear it. One other advantage I find with the automatic withdrawal is you never miss a payment or make a late payment through forgetfulness.
PAD is great if you are on equalized payments otherwise pay through a bank app.
Old codgers have a hard time contending with the technicalities of such high tech methods.