Any top up for your walkie talkie?

This is what Salim, the Post office man, told me this morning after I had just posted a few letters and some Odd orders (we are having a surge of orders these last few weeks - how ironic). He was saying "Anything else? Any top up for your walkie talkie?" It made me laugh, it seemed to come straight from a Postman Pat storyline! What a low tech reference... It's funny and still very accurate - I understood what he meant. My Nokia is a grown-up version of my childhood "talkie walkie" (as I would say in French).