Anna University — delay in giving certificate

I have applied for my migration certificate by postal as instructed by the university. It's been a month and few days and there is still no response, i cannot disclose the identity because if i does i wont get the certificate ever in my life. That's how this society works. Such a bad system for the university. I have complained through mail but no response then when i called them directly the number does not exist is this how an ugc naac accredited university should be? Doesn't even maintain a proper communication channel shame.