Funds under this Letter of Credit are available to the County hereunder not exceeding in aggregate the amount of this credit against the County's demand for. In the sample letter, fill in your personal information.Our guide will teach you how to write a letter of explanation, plus offers a free template to help you write one of your own. A letter of credit facility is a contract between a buyer and seller where the bank guarantees payment upon presenting certain documents. File online with a credit card. OR. Complete the fillable PDF form using your computer. Submit your application and plans (no larger than 11x17) in person during the hours of AM – PM Monday through Friday. The City of West Palm Beach is a vibrant and dynamic City located on the Atlantic coast of Florida. Motor vehicle dealer applicants may elect to obtain an Irrevocable Letter of Credit. Once you create an account on our portal, you can fill out all the necessary forms and submit your application electronically.