If you wait for your mum to contact you, you will wait forever as she simply will not remember that that is what she is supposed to do. My mum doesnt even remember that she has seen me the day before. I know that you think she must remember because she comments about your hair each time she sees you, but that is an emotional memory triggered by seeing you. She will not be thinking about it inbetween your visits. Are you still upset about her will? If your mum is in a care home, then she has had dementia for quite a while, probably many years (though many of them can "hide" the symptoms until they are really quite advanced) and the changing of her will sounds typical of dementia - remember my story about my mum taking against a very good, long-standing friend of hers and saying that she didnt want anything to do with her? It happens - its the dementia controlling her.