Paying a recibo de la CFE con una tarjeta "extranjera".

He is correct, we asked about it. The only place you can pay with a foreign credit card besides undostres is inside the office with a person.

Friday Dec. 11 2020

@ Talley Ho & Midalake, THANK YOU for your replies

Confirmed: I went to the CFE office in person today.
No problem with the USA plastic. Bill paid, done deal.

On a side note, I went overboard with the a/c:
$3,025 for 1,006 kWh consumo.
For several months prior, I had an average bimonthly consumption of 828 kWh, with an average cost of 1,989 per recibo CFE.
So, it's time to "cool it" (PUN INTENDED) with the a/c