"Dear Banker, I'm writing to request the closure of the following accounts at your bank. It can be as simple as "we are closing your account as of X date.This letter is to inform you I am closing my accounts at your bank. The following list of responses to frequently asked questions may assist you in understanding what happened at Silicon Valley Bridge Bank, NA. Download an application below, call (408) 758-3800 to get an application mailed or pick it up in one of our lobbies.