Mother is very lucid about the distant past and has a great sense of humor in general. However, as I work daily, I leave it to her to follow up on an overdrawn account letter from her bank or a needed letter that only she can request from her teacher's retirement agency at the state level. I was there once when they called and gave her a number and extension to call, only because I took that day off from work and happened by the phone when it rang and she picked up. She assured me the next day that she had calle dand requested the document needed so we can qualify her for a Home Attendant. It troubled me in my sleep a few nights later, so I called the agency from work the next day, only to find out the document has NOT been requested for this year 2015, as I instructed Mum to do. Should I throw it in her face and remind her that she did not do as required, or say nothing. Nothing short term seems to "stick" anymore for more than a few seconds. "Help Me" (Joni Mitchell)
Not really much help, I guess, but just some assurance that it will eventually fall on you to do it all. Good luck!
Is your mother's hearing all right? Check she's not having difficulty with making phone calls, perhaps; and make sure she's got a good, clear diary/To Do list somewhere convenient.
Take a loving attitude and ask her how you can help her follow up on these issues, as well as any others with which she may be having trouble.
One day you may be in her position. How would you want your children to handle these kinds of issues?