Moq callbase not working

I'm trying to call the real public virtual method on the repository here, it's skipping right through. What am I missing? I have also used _mocker.GetMock -> setup method .Callbase()

    [Test]
    public void RunJob()
    {
        //Mock the service.
        var mockService = _mocker.GetMock<IService>();
        var mockRepo = new Mock<Repository>() {CallBase = true};

        //Setup service mock to pretend to call out.
        mockService.Setup(service => service.Trigger();

        //Create job object.
        var job = _mocker.Resolve<Job>();

        //Execute job.
        job.Process();

        //Verify service mock "called out".
        mockAlertService.Verify(service => service.TriggerAlert()), Times.AtLeastOnce);

    }