(1) Parties and representatives must tell DEL and OAH, as soon as possible, when the party's or the representative's name, mailing address or telephone number changes.

(2) If OAH and DEL are not notified of a change in a party's or a representative's mailing address and either DEL or OAH continues to send documents to the address stated in the file, the ALJ and DEL may assume that the documents were received.