My question involves labor and employment law for the state of: PA
I am employed by a company that requires its sales staff to take vacation between Christmas and New Year's Day. Employees are required to use vacation time or will be considered off without pay. This year, that equates to 4 required vacation days. As I started this Job in September, my vacation was prorated and due to that pro-ration (having used no other vacation since starting employment), I am 1 day (8 hours) short to cover the required vacation. I brought this up to my employer and was told that this is what's been done since 2009. Well, that isn't relevant Mr. Employer, as you (nor anyone I interviewed with) made me aware of that policy, nor was it outlined in the offer letter that I signed (otherwise I would have negotiated better to make sure I had at least 4 vacation days as part of my offer). Employer is standing firm. Is there any diplomatic way to resolve this?

