Employer Letter For Licence Is There A Way That I Can Get My Work Experience In Writing From My Former Employer In California?

Is there a way that i can get my work experience in writing from my former employer in california? - employer letter for licence

Hello, received the license, I need letter from employer in the previous experiment, but do not do it, I sent the letter, but there is no law or responce.is many ways to help me get out it.Please