They were very unprofessional and don't know what ...

They were very unprofessional and don't know what their clients requirement.they took 3 interview rounds and then they forwarded my profile to the client for the screening(without knowing the client requirements) i keep on coordinating with them for client round but after few days they told me that client requirements has been changed so we can proceed further. Do not trust these cheap kinds of small companies who doesn't have any ethics.