Angel Broking — can't operate account for an year

Client id kolk2xx5, trying to operate my account for over an year now. Visited office thrice, deposited form at office and mailed form to hyderabad office. Verification call came but they said they'd do a whatsapp video call, which never happened. We are losing money because of their inefficiency. They keep harassing us, and none of their employees seem to work for more than 2 months. Every time we try to call back and ask about the progress, we hear that person doesn't work with them anymore. Is there anything called accountability and responsibility?