When Blip had her Old Friends check-up this week, the practice gave me samples of Royal Canin Mature Weight & Kidney, dried and wet. Somewhat to my surprise, Blip has taken to them both eagerly (she doesnt eat much dried food, but I leave it down during the day and she will chomp one or two kibbles). So I might look at getting some supplies in.
Is Zooplus one of the sites that you can click through from rescues? I havent used it before.