I’ve just received spam from AT&T. I have automatic billing on my home telephone number, and they’ve decided to ignore my preferences and send me email to remind me about their “eBill” option. They have my email address because I used it once when I needed my phone repaired; I expect they decided to vacuum their database and start spewing “helpful” reminders.
AT&T rejects complaints to Spamcop, which is simple arrogance.
Clearly, if AT&T can’t be trusted to abide by my explicit preferences about receiving email, they can’t be trusted with automatic payments, so I guess it’s back to manual, paper-based billing for them — until I find a suitable alternate provider, and then it’s good-bye forever to AT&T.