Your question is a great question and it all depends on the state in which you reside or work. For example, in California, you must be paid all of your wages, including accrued vacation, immedately upon termination. So that means if you are in pay periods that are behind by two weeks (as is usually the case), and you quit, upon discharge you should get those two weeks, the additional two weeks and any accrued vacation time. If they are trying to pay you in multiple checks and did not pay all of your wages at once, check with your state's department of labor of the requirements and then go from there in terms of what you need to do to rectify this situation. Statutorily, you may actually be entitled to more because of the potential violation.