Edelweiss Financial Services — being cheated

The zonal manager has cheated me and made me run helter skelter. I want t9 cancel the loan. He promised me that the pre emi cheque will not be presented till the cheques are handed over and took my signatures. But lateron i got to know the cheque has bounced and the bamk has charged me 590 rupees. If i call the manager he said its not his department. Please help