I don't know what others think but you could say something like 'I've been mulling over what you said yesterday and have come to the conclusion that although generally I don't agree with an 11 year old having a mobile phone given the circumstances this could be a great opportunity for daughter and I to have better communication which is something I really want. Thank you for suggesting and sorting it.'
Why don't you text her this... Show that you 'get it' although make it sound like you - you get the general gist though?? I don't think that you would lose face by doing this. Think over it some more before you act.
On your question, I know that it is so hurtful and I know the pain... still do... Only they know why they want to only communicate by text? My own theories are guilt and shame on their part and the need to flee from pressure they feel from the LBS, it is common though I think. Give yourself a break from thinking on it too much and try to work on accepting that this is how it is at the moment. It doesn't mean that it will stay this way. As that post stated yesterday, the worst has happened and the only way is up.
I felt like H was talking to an office colleague when he was talking to me. It is painful, believe me I know. But it is their problem, not yours.
