Wow that's so much more retarded than I expected. I thought it was the telcos setting up bots to get an increased amount of texts with standard fees. Simple, difficult to detect.

My private number can't send texts to premium numbers, that an automated 2FA system could is so ridiculous I would never even try it. I guess that's why they're better fraudsters than I can ever be, they expect this level of stupidity while I'm surprised.