Is there any possibility that you may have signed up with them some time ago for an other product like their Square card reader? That’s when I became known to them.
Square is a US company and is monitored by the US government so if you had gone that far previously they would know you.
Personally, I gave up trying to be anonymous years ago. It happened when Scott McNealy then of Sun Microsystems did one of his PSA’s and announced that it’s no use trying to remain in the shadows. He is a guy I have trusted for a long time. I’m certainly not a Luddite but I wish these identification systems were not so cumbersome.
Talk about cumbersome, how many of you guys have ever had to deal directly with Comcast??