Cheers for getting back to us. Thank you for letting us know that you've already tried uninstalling/reinstalling the Sky Sports app on your tablet. I'm sorry that you are still unable to access your Sky Sports channels via TV Anywhere.
Checking this, I can see that your tablet isn't registered for the Sky Sports app. The Sky Sports and Sky Cinema app is separate to the TV Anywhere app. We need to make sure that you are trying this through the correct Sky Sports app.
If you are using the Sky Sports app already, you will need to remove a device and register your tablet if it is within the technical requirements of this service. Please see the following link for further help with this: