Driver side window sometimes doesn't roll up, passenger side never rolls up.

What is your question?

A few months ago, my drivers side window would stop rolling back up every once in a while. It rolls down fine, just doesn't want to go back up. After a few minutes of repeatedly pressing the button, it would go back up. Then one day, it went down and refused to go back up so I took it to a shop and they replaced the motor and regulator. It worked fine for a month or so and now the problem is back. Not only that, now the passenger side window will not roll up from the driver side buttons. I have to use the passenger side buttons to get it back up (Rolls down fine). What's the matter? And if I take it back to the same shop will they charge me again??