I asked my partner to name me as his beneficiary. He says he will but has not. What can I do?

‘One part of why nobody likes to talk about wills is that they force us to confront the fact we’ll die.’ Painting: Xanthippe Pours Water Over Socrates by Luca Giordano. Photograph: Alamy

My partner, who is almost 80 and is extremely kind and generous, supports me. We have lived together for six years. He has no children and, when I moved in with him, he left his home to me and his money to his sister, who also has no children. She lives overseas and he no longer feels close to her as she is very controlling. She took over our lives when she visited last year.

I gave up my pension, at his request, to live with him. I have a small income from an investment property, which is my superannuation. I have asked him to name me as his financial beneficiary and not her.