What are my rights as an employee to vacation time that was verbally agreed to in a job offer?

I live in Oklahoma and recently changed jobs. In my final interview for my new position, I informed the interviewer (the Vice President of the company) that I already had two vacations planned and paid for this year, one in May for four days and the other in August for seven days. The Vice President verbally agreed to let me take those days with pay without counting toward my vacation time. He said this was a special exception because the salary for the new position was not very much of an increase from my previous position.

On Friday I returned to the office from my four-day vacation and the President of the company pulled me into her office. She told me they will not be paying me for this vacation I had taken, nor would they be paying me for the vacation in August that was verbally agreed to in my job offer.

She then told me that because I had planned to take these vacations while under my previous employer that I had already been paid for this time via the unused accrued vacation that was paid out from my previous employer. On Monday the President of my company wants me to present my final paystub from my previous position detailing the unused accrued vacation I was paid by my previous employer.

I feel I am being taken advantage of, and I am not sure that my current employer has any legal right to view my pay stubs from my previous employer to use against me.