Indian Institute Of Management — about bank job

Address:

302029

On 4th sept i have submitted the registration fees amounts is rs 2200, after that they demanding for next amount of rupees 5400.
I had also paid these amount after that they also demanded for next amount of rupees 10000 for the security.
I paid all these amount and they also provided some kind of documents for this. But now they not responding my calls please provide me some resolution.