>I already sent the app to the customer; although I don't even know if he looked at it. I am sure in your carrier you have had cases when "they" had wanted something but never even looked at it :)

That's normal. The higher level of the category is when they insist on some feature, and then act soooo happy when they get it, and in the end don't use it. As long as they pay properly, I don't mind. It's an exercise of keyboard, to punish me for not being convincing enough to explain to them why they don't need the feature.