UPS has never messed my check up until now. 4 weeks in a row now that I have double shifted and not received OT pay on my check. In my region its anything over 5 shifts in a week is OT pay. So, for instance I doubled twice last week, Friday were my 6th and 7th shift, which I worked 8 hours, should all be OT pay. However, I've been getting my paychecks and there has been no OT pay, just straight pay. 4 weeks in a row of this. I bring it to my managers attention and he gives me the whole, its the payroll's fault in Fort Worth, or whatever schpiel, we'll fix it. So they send me a green check and they tax me like crazy! 4 weeks in a row of this.... Is there anything I can do about it, or should I just be content getting screwed every week and getting green checks? I dont work OT for them to screw my check up every week... Any kind of grievance action, or is it just their honest weekly mistake?