After visiting a family express that I've been shopping at for many many years suddenly refused me s...

After visiting a family express that I've been shopping at for many many years suddenly refused me service claimed I stole items from them and when I said that never ever happened, I never was confronted over any stealing, and when I asked the clerk for proof since I was never even confronted, she claimed it was 2 years ago by a manager that no longer worked there????, I said this is false and I won't be slandered like this. This is totally wrong and I refuse to ever shop there again