Lost employment due to unsubstantiated comments

Location: Pennsylvania, Philadelphia County

Hello all,

So I’m a bit confused here regarding the terms of my recent termination. It was stated that I made ‘discriminatory and racial comments’ while at work which I lost my job for. I have asked for the terms of my termination as well as the comments that I had allegedly made be sent to me via email in which I received a document stating why I was terminated but no specific comments mentioned. I know I didn’t say anything of the sort but my previous employers say they cannot share more information.

If I’m being accused of essentially being racist but not given any evidence of such do I have any sort of case? Would that not be defamatory? I’m not informed much in terms of law and I know PA is an at will state so I fear there’s not much I can do but I can’t imagine that a job can fire me for being racist without any sort of evidence of such?

Tia.