Can't live without them, can't burn them in effigy with any real sense of satisfaction.
I have Vodafone for my mobile, and AAPT for my home phone. Each one has a billing cycle of the calendar month. And each one waits a full week after the end of the billing cycle and making the bill available online, to tell me that my bill is available online. Which frequently means that I've paid at least one of them before they let me know about it.