STM — fraud company, fake jobs, no payment

I have got a data entry job from stm company on 27th june, 2019. The target was - i had to complete the the filling of 1500 forms within 10 days.
On 3rd july i have submitted my qc. A day after, i got a mail that my qc has been failed.. I gave a call to the helpline number - [protected] to ask what's the problem. They told me that the forms are not correct. It was showing red lines over there. But later on i checked that the forms were correct and it was showing red lines just to make people fool that it was wrong but it was actually right..
In this way they failed the qc and didn't pay.
Moreover that i got a mail that i have to pay the registration fee 4500+3000. If not then legal actions ll be taken.
It's a totally fraud company. Cheating people.