Is compass group a no rehire company?

I started working for them in 2018 and I remember in orientation they said they were a no rehire company; however I saw people leave without notice and be allowed back months or years later. Supposedly one of my managers was fired in 2007 (but before the hospital we work at was taken over by compass) and she’s now a boss. So
I was just wondering if they’re bluffing or if maybe I’m misremembering.
Is compass group a no rehire company?
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