Broadband deals - I will pay up to X if you give me up to Y

I am getting sick and tired of hearing ads for broadband (especially 3G) who use the max theoretical speeds as the headline of the advert. e..g pay 25 euros for speeds up to 7Mbps.

What is the average?

What is the minimum?
I have a new way of dealing with these offers and phone calls about these offers. I state that I will "Pay up to 25 if you give me up to 7 Mbps. If you give me less I will pay less."

For some reason they don't like my approach.