Where a client is unable to provide the information, for example where they have no address because they are homeless, or where they have no telephone number, you are not obliged to withdraw. Where the information does not exist, you should make a record of that fact. It would be prudent to document how you will contact the client. For example, there may be an address where the client can pick up mail.

This situation is to be distinguished from one in which the client refuses to provide the information.