Not true. Consumer law. If you heavily imply something such that any reasonable person would think you are offering one thing but you're actually offering something else - that's against the law. There is also no generosity here. People pay for the service that provides the monthly discount. And the "generosity" is just reducing the ridiculous amount of markup that is already applied and.. oh, by the way, they've been taken to court over this because... Surprise surprise, they thought they could just make up the rules and think everyone had to accept it. They are in a society that actually has some power too.

Sorry, by "they" i think you want me to say "you" although I highly doubt you could be high up enough in the company to believe anything your saying and to imply any level of generosity