I just ordered AT&T Internet a week ago. Because the building I'm living now has a deal with them and I get a cheap package. They demanded my SSN for a credit

I just ordered AT&T Internet a week ago. Because the building I'm living now has a deal with them and I get a cheap package. They demanded my SSN for a credit check, and they spent almost every call trying to upsell me. It felt very trashy and unprofessional. They also hijack DNS and point all unresolved domains to their own search page. Very scummy. I wouldn't use them again if I had a choice.