Adding routes to helm deployed kong via kubectl apply

We have recently started using kong and have deployed if via helm, however I am having issues adding routes to it.

After deploying I can hit the root endpoint fine and get the expected {"message":"no Route matched with those values"} response, however after following the getting started documentation to add a basic service and route, the /foo endpoint still returns {"message":"no Route matched with those values"}. If I teardown the helm deployment and instead install using the kubectl apply method, the route works as expect.
Is there something I am missing about installing via helm, or some values I need to change in the quickstart.yaml to allow me to deploy routes using kubectl apply?