Welcome to our forums and thank you for getting in touch. I'm sorry that you've been having difficulty managing your TV Go devices. Have you managed to resolve this since your post? If not, we can certainly look to assist you with this.
What happens when you try to access this part of the site? Is there an error message displayed? Does it just crash? You're welcome to provide a screenshot if that's easier, as long as you obscure any personal information.
I log on and go into " manage devices" it shows me all 4 devices I have registered but I although "replace" is in red, when I press on it nothing happens. Whatever I press on the page nothing happens. No error code or freezing of screen. It's as if I haven't entered the correct page to make any changes ??