I was just about to post you a screenshot but then I got a better idea. Since all employees are being instructed to educate customer on the payment administration fee you should just call that 800 number. Its 800-331-0500. Ask if the bill payment fee is going to happen. Then call back until your heart's content.
This is already happening in the southeast market which is in line with the memo and verified by one of BBR's users.
This is already happening, not waiting until May. I track ATT voice tariffs - it was just filed yesterday for Ohio (effective as of 3/3). Other states filed and listed effective dates as early as last year.
But, you can still pay online, at the 1-800 #, or by mail, all without the Convenience Fee.
So remember before you call BS on something please take the to understand it just may very well be true. Have a wonderful day!