My battery has gone flat trying to deal with PC World

We need a simple fix but there was no response from Team KnowhowI’ve been trying to get my daughter’s laptop (bought last year) fixed by Currys PC World since May. I think it needs a new battery. It fails to charge after only nine months, so not a serious issue and one I could fix myself, but that would invalidate the warranty.I emailed its support team, Team Knowhow, detailing how I came to this conclusion (not difficult, and I work in IT), and when there was no response after a cou