HCL Technologies — FnF pending and Admin clearance not done

I am a former employee of HCL technology,
I have put down my resignation on 25th Nov my last working day was 22nd Feb.
I have submitted all required documents and assets to them (laptop charger id card access cards everything), I have been waiting fir my Fnf and experience letter and relieving letter.

My FnF amount was around 62k but today 30th March I have received some money which is 3800 rs I am not sure if it is my fnf money or something else because in my separation portal admin clearance still shows pending.

I am not sure whom to get to as wherever I mail i get no response from them, I have been associated with this company for almost 4 years I am just really disappointed that for such a big organisation there is no proper chain of command and no communication links.

Employee id[protected]