[It would seem odd, wouldn't it, if he just wrote back. So voice it is and it's hoarse and wavering. He's not in good shape.] Sorry. Sister of my own.

[He had no malice for his sister in truth, she was just too... happy. Happier than him, so he just didn't talk to her at all.]

That's Del Boy. Bleeding heart. [Whether that's a bad thing or not, there's none of the mocking in the tone when there would be normally.] I'll pass it on, maybe. [The condition being he'll ever see him again. He doesn't know how likely that is.]