Hi

I've been in a few discussions with Knowroaming about my issues, and in all fairness they have been very helpful. They went through every issue in detail and they ended up buying the D6633 to test out. They have also updated their app to it should be more streamlined now. I would contact them to see if they have ironed out the bugs as a result.

I probably won't be using it now, but may do in the future. My reasons for not using it aren't to do with the sticker itself now, but other reasons. But if I were you, I would give them a try if you think the service might benefit you.