Below details is not coming in your effort.
1) Without JD, Can any one will go anywhere for interview. As placements agencies you all might be knowing what is meaning of JD.
2) Have they send any skill set required for any designation for anyone of the company / organisations.
3) Have they given any guidance / support in this regard i.e. study materials.
Your terms and conditions is useless without above effort.
Our online registration fee is not hard earn money that is not our effort which we had paid you online.