What should I do if I am locked out of my mobile access? Please contact 3Rivers at 800.825.3641 option 1 for assistance. Have more questions? Submit a request 0 Comments Article is closed for comments. Related articles What are 3Rivers' 2020 holiday hours? What is 3Rivers routing number? Can I reset my password through the app? What are my sign-on ID and password for the new mobile app? Will there only be one sign-on ID for both mobile and online access?