HCL Technologies — HCL Sap id[protected], FNF settlement dues paid but HCL denies that they received

I was told that after getting provisional FNF I have settle the dues to get the relieving letter and experience letter. I asked where do I need to do the payment so they provided me a current account to which I made a payment on 28th December. They mentioned that after receiving the amount in 2 business days they will release the experience letter and relieving letter. I received final FNF statement, experience letter and relieving letter but in Final fnf statement they have marked the amount of salary that was in hold that should be returned to me in negative. that means again I have to pay that amount to HCL. I have already paid Rs. 73809 for unserved notice period and I should get Rs. 37000 return as salary that was on hold but they are asking that amount to me again.