I need to downgrade to internet only

I've spent so much time rooting around and can't find anything helpful. The "chat" bot just runs me in circles. There is no way to keep TV and voice and we thought we were doing this enough ahead of time that it wouldn't cause a frustration (a major heart attack is why we now have no income, so the stress of this isn't helpful, either).

Please help direct me to someone who can help!