Hi JW10, thanks for your post - sorry for the delayed response.
I'm also sorry to hear you've had this problem with TV Go on your iPad. I've encountered a few instances of this recently, after unsuccessful attempts to resolve it I've raised it with the mods who have arranged for this to be investigated further.
To help with their diagnostics I'd like to get in touch and confirm a few details with you which we can feed back to the relevant teams. Please look out for my PM and get back to me when you can.