Britbox doesn't work on LG Smart TV.

I had the Britbox App installed on my LG smart TV 55UH603V. One of the series wouldn't play properly so I logged a fault with Britbox. I was told to uninstall the App and reinstall the App. My TV wouldn't allow me to do this so I contacted LG. They managed to help me remove the App but now the App is no longer in the LG App store. LG said I must take it up with Britbox. I did so and Britbox referred the issue to their technical department. That was 3 weeks ago and I am still waiting. Everything else works like Showmax, Netflix and DSTV. Just Britbox doesn't work. It is not worth the trouble and they take too long to respond. Rather subscribe to something else.