If you're unable to make an update online you can contact our Customer Relations team on, 0345 300 2585 if you are calling from within UK or 0044 1268 44 7405 if you are calling from overseas. Alternatively you can send us a letter including your name, account number, old and new address and your signature and send this to us at RBS Collective Investment Funds Ltd, PO Box 9908, Chelmsford, CM99 2AF.