thank you for all the replies and support.
i have good news to post.
today the eal children came to the setting and initally they came to me.
then one went and sat with a group of children, without encouragement and the other took hand of another child to play with.they both spent extended periods of time away from me and then comming to play with me and other children.
i was so happy to finally prove my point to the other staff.
i have won their trust that if they leave me i am still around if they need me and good to see their blossoming self confidence.
and when they were away from me they didnt spend all session keep looking to see if i was still their.