[Resolved]  Exa Technology — calling me and disturbing

This company is calling and disturbing me. When i was doing this work then next day as usual i used to get the report but they were showing some reasonless mistakes which were not supposed to be. I mailed them twice to their helpline department they said they will report back within 24hours but they didnt so i stopped working and stopped wasting my time.
Because i understood they are fraud. Please tell me what should be the next step that i should take.