HCL Technologies — To update father's name in HCL UAN account in order to transfer it to current account

I have been an ex employee of HCL and wanted to transfer my PF account to current account in order to withdraw it.
I raised request on EPFO portal for same but request was rejected but no reason was given.
Based on form 13 that was submitted i could see that my father's name was wrongly updated in my HCL account.
I sent out multiple emails to HCL PF help desk in order to get it updated. But there was no response.
Finally tired of waiting, I went to HCl office in sec 126 Noida and was not allowed to meet any one but given one help desk no and email id. It took three days before i was able to reach a person on ph no. Anyhow when I contacted them it was like hitting a wall again and got the response that only the pf team can help in it and they are only accessibly on mails.
Now i have been trying to chase them but getting no response at all.

Request is to please get my father's name updated in my HCL UAN no
Here are my details:

HCl employee id: 51502404
Name: Vibhu
HCL UAN Number:[protected]
Current Employer: birlasoft ltd
Current UAN no:[protected]
AAdhar no:[protected]
ph no: [protected]