Bajaj Finserv — refund my 40000 loan fees

Sir I am applying for education loan 100000 and he said me that you pya procecing fee and loan amount in your account 30 Minut but some time hi call me and told me GST 12800 when I pay then hi told me 13000or rupee pay I am not pay for money I told him that you rpend my many hi said refund fees 2500 I pay refund fees Hi said other fees sir plz help me refund my money