public void UpdateExistingOrganisation()
        {
            var country = context.Countries.Single(c => c.IsoAlpha2Code.Equals("gb"));
            var org = new Organisation("SFW Ltd", BusinessType.LimitedCompany);

            context.Organisations.Add(org);
            context.SaveChanges();

            var orgId = org.Id;
            org.Update("Only Name Changed", BusinessType.LimitedCompany);
            context.SaveChanges();
            Assert.Equal(orgId, org.Id);

            CleanUp(org);
        }