Wipro — PF Joining date is not matching with organization joining date

Hi,

I worked in wipro from 27th June 2016 to April 15th 2021.
my Date of joining is 27th June 2016. in EPFO portal it is showing as 1st Aug.
I have raised a request to change the DOJ. But need to inform employer to approve it. Alumini portal is logging in and after that it has login button again, clicking it shows 404. I need mail contact so that I can inform this.

Thanks