TV go

On my dad's android device I have recently been asked to sign in every time I use the virgin go app.

The first few times I clicked a football I wanted I exited to sky sports and then had to sign in via the Virgin media icon.

But I've also opened the Go app & have been asked to sign in here also one I've done that it all ok. I would not mind but my dad is partially sighted so it's difficult.

Any help would be much appreciated.