This is what I sent them. I eventually received a refund from Roku. Good luck!
"I added/payed $4.99 for this streaming app (Royalbox BBC iPlayer) to my Roku Ultra. The app crashes everytime I try to watch something. Tried restarting system several times which does not fix the problem. I uninstalled the app, but when I went to reinstall it I was going to be charged $4.99 again. So basically this app does not work. Information from the real BBC iPlayer representative stated this app is not affiliated with them. I looked to contact the company Royalbox BBC iPlayer, but they are no where to be found. It's as if the company does not exist. Am I just out the $4.99?. Roku should really look into this app and remove it from the Roku services as it does not work. Save your customers from losing their money on this app"
Also worth contacting head of ITV UK, and the head of OfCom (UK Government department that governs broadcasting in UK incl. BBC), head is a recent appointment Lord Michael Grade, who is very much a TV industry insider in the UK for many years).
I love my royal box and Royal box ITV and now it says channel has been removed !! I didn’t even get an email .. I paid for both of them and now they are gone with no explanation.. does anyone know what happened ?