Periyar University review: Certificate not yet received after 5 years of course completion

I completed my BBA course in year 2017 and still (10-nov-2022) I have not received my provisional and course completed certificate. I have done several follow-ups throughout the years, but university is not providing any valid reason for the delay and no responses from their end about the certificate.

It's very hard for me now, as I'm not able to apply for the promotion or a new job without my certificate.