I got a project on upwork few days ago and I wasnt aware to make a contract and he contacted me through telegram, I completed the said project within the due date and now he has been asking to send him the $200 as a "linking fee"
You are not allowed to contact clients off of Upwork until you have a contract through Upwork, nor are you allowed to accept payments off of Upwork. Even if this had been a real job - which it obviously wasn't - you were violating the terms of service that you agreed to when you signed up for an account. Read more here for some tips on how to avoid getting scammed again: https://community.upwork.com/t5/Community-Blog/Top-Red-Flags-for-Scams-From-Community-Member-Wes-C/b...
Thank you for reaching out to us and having the initiative to protect other Freelancers from these type of schemes. Please check outthis article to know how you can flag suspicious user activities in the platform.