Axis Bank — Axis Bank is not receiving Relieving letter

Hi,
I have worked at Axis for over 2yrs+. During Covid time I was not able to go to office due to personal exigency and after few months they me as Voluntary Absenteeism Service. They had settled my PF and have recovered all the dues. I had informed them about my expected Absenteeism through mail. It has been more than a year since my last day and yet they are refusing to give Relieving letter. It is affecting my future prospects. Kindly help