I think you need to stop asking her. She knows the deal. As far as the phone - same thing - you've told her more than once. I would just put the dates in writing and post it on the frig then be done with it. You cancel the cel phone plan but don't keep telling her like she is a child. You just do it and if she doesn't take care of it - that's her problem.
I would be uncomfortable having her feed me all the time when this is about to happen. But that's your call. Some separation is in order.