I noticed something weird on my paystub today, and I think there was an error in OVER-payment. I drove 4 days last week, which would be 32hrs regular, plus my 3.64 overtime. I also drove saturday air, which was roughly 3.5hrs which is included included in the regular hours. This is usually under my air rate at a lower pay grade. Now there is that guarantee line. I have no clue what that is. The hours listed don't go into the total hours worked, but the pay is added into my total paycheck. I have no interest in starting over $95. Should I call up HR and inform them, or just wait for them to discover it and let them take it out of future paychecks? Also, any clue what that Guarantee line could possibly mean?