I'm 8 months into a position and I've decided to move on. HR informs me that there is a relocation expense clawback clause in my contract. I had no knowledge of such a clause. I checked my contract and there is no such clause.
HR then said it was in my offer letter. I checked my offer letter and there is no such clause. HR then said the information is in a policy document referenced in the offer letter.
I checked the policy document and the clawback details are there. It seems rather underhanded that they hid such important information in an unsigned reference document.
I don't know much about contract law, but I would think that the clawback information in a referenced document does not constitute a legally binding contract clause. Do I have a leg to stand on to fight this?