There are 90,000 unaccompanied refugee children living in Europe, 10,000 of them are no longer registered with any authorities. Many of these end up being abused. The UK has agreed to take just 350 children and will close the programme next month unless the public convince them otherwise. You can write to your MP, sign a petition, write to your local paper, get your organisations to pass a resolution urging the government not to close the programme, etc.