If you have a check of this bank, you can get the account number and check routing number at the bottom. Here is a picture to show the information http://usbankfound.com/check-routing-num... it may be more intuitive for you to take a look at it.
Definition of retainer 1: the act of a client by which the services of a lawyer, counselor, or adviser are engaged 2: a fee paid to a lawyer or professional adviser for advice or services or for a claim on services when needed
Retainer Fee. Definition: An amount of money that acts as a fee pre-payment; the remainder is refunded to the client . Retainer fees generally come into play when you hire an attorney. If you anticipate you'll be contacting your attorney with a lot of routine questions, you should considering hiring--and paying--them on retainer. That means paying them a monthly fee that entitles you to all the routine legal advice you need.