I am from the USA where you can not talk about any sort of detail over the phone with an escort and certainly never put it down in writing such as an e-mail or text. Can you just call an escort here and just say what you want? There is nothing illegal about asking an escort how much it would be for for A-level? I am a very polite individual and would never want to offend someone, but at the same time I don't want to waste the lady's time by dancing around in a conversation.