@julia87 How much do you know about Basenjis? Have you met any? It's highly recommended to learn as much as possible about them before making a decision to acquire one. This would be a good place to start.
Welcome aboard, but do share his registered name ? Who are Dad and Mom and what was his date of birth so we can be sure to add him to the Basenji pedigree on-line database (with a photo ???) for the world to share him. http://www.pedigrees.zandebasenjis.com/
Welcome to you (P…) and Benji, so pleased to see you on here!. I hope the seizure was a one-off but i'm sure you'll get plenty of valuable advice here if not. Do get in touch with M & L they have a wonderful vet for Skipper in Oswestry.