Last updated on December 19th, 2019 at 04:04 amHow to make a Complaint to Bank of the West Bank of the West provide very comprehensive help, support and complaints handling through the ‘help and Support’section of their website including a complaints number on 1-800-488-2265 (Mon-Fri, 4a.m.-10p.m. PT Sat, Sun, & most holidays 5a.m.-10p.m. PT). There are