My parents currently have an unlimited $50 plan , as my dad (87 years old) used his cell phone a LOT when he has hospital stays. When he is home, he never uses it. Question 1: Is there a way I can de-activate or have like a $10 plan until he needs the coverage again? Question 2: I will re-activate it for them, so I need to be able to do it remotely as I am three hours away. Is this something I can do through self serve? It's a very basic phone with no sim card. Thanks in advance!