A card was sent to my grandparents on the anniversary of their marriage, I needed to apply for it and did so. I didn’t really expect it to be done. My grandfather died within days of getting it (he had terminal cancer) and he was so pleased at the lovely message that was put inside, my grandmother treasures it and is a similar age to the queen. I sent the queen a thank you letter and jubilee card and got a reply which I didn’t expect and was grateful for.
Yes I know it wasn’t done by her personally but it meant a lot. Her card to my grandparents really made my grandfathers last days so memorable for him, gave everyone something to concentrate on other than his suffering.