Hello, I am Umer Hayat and I am a full stack web developer. about 3 days ago i have been invited to an interview via freelancer.com that will be conducted for Telfort communications by Sara Ao Xiaomei and after that i received a confirmation letter from the company by
Chief Human Resources Officer
Human Resources & Administration Division
Telfort Telecommunications Company
Please confirm these are these authorities really from the company and is this letter true?