If you want to contact Upwork, you can use email address, phone number or through social media. Below are the contacts of the institution that offers jobs to students and graduates:
475 Brannan St.
Phone: (650) 316-7500
525 W. Van Buren
655 Montgomery St.
Press Inquiries : firstname.lastname@example.org
If you want to make money online,Upwork is one of the companies to register with. You can make money through the referral programs or the tasks available on their platform.