List the full name and phone number of clients who submitted the complaint via fax.
full name = first, middle, last; submitted the complaint via fax refers to "Submitted via" = 'fax';
SELECT T1.first, T1.middle, T1.last, T1.phone FROM client AS T1 INNER JOIN events AS T2 ON T1.client_id = T2.Client_ID WHERE T2.`Submitted via` = 'Fax'