'Bait and switch' ? Century Link phone company New Mexico

I recently moved to a different part of Albuquerque into a 'senior citizen' high-rise with about 150 apartments.
I have had excellent cell phone service for years at my previous address but it's almost impossible to connect to a cell tower from my new address.

My phone is fine; had it checked out. Other residents and staff also have trouble connecting and advised me to get a 'landline' phone.
I looked online for inexpensive (cheap) and found on Century Link's webpage 'Basic Landline Service' unlimited local calls $23.99
which seemed to be what I needed.

I called Century Link for more info and was told the cheapest is $80 and she knew nothing about the $23.99 offer on their webpage.

I was able to add a line to my internet for $10 a month, unlimited national calling (and to about 20 countries).