The victim in the video is Viven (not her legal name). Andrew Tate has been charged with trafficking her as a minor.

She was 17 in 2014 when he put her on webcam. The video you posted was made in 2012, according to Andrew. You can do the math.

Her age has been confirmed by her home country, and MyFreeCams has cooperated with authorities and confirmed her account and when it was created.