I was let go..... After two years of very dedicate...

I was let go..... After two years of very dedicated worker, no one called to tell me they were letting me go, they just simply stopped calling and giving me work, then I called about using them for reference, they said they would send me a letter, after the second time I emailed asking for it, I was blocked, I called HR manager she said she would send it, this was over two months ago... what company does that? And they call themselves professionals, what a joke.