My mother is a vulnerable customer. She has had an email saying she will have to change her phone as it does not have 4G connectivity /4G calling. She does not want a Smartphone. ID no longer seem to sell Doro phones, which is what she has at the moment. The only large button phone I can see on your website (Nokia 2660) does not appear in the list of compatible phones that you sent. Unless you can suggest a compatible phone I think we will have to change network. (By the way your live chat is a waste of time).