Both passengers Windows makes rattling noise while on rough roads.

Any help and where to fix in Angus Scotland 

Could be that the rubbers on the guides have worn or they have popped out possibly 🤔 best way to check is when you have a tone of time incase you need to remove the door cards ( lower the windows about half n see if you can lift them ) if they start lifting out then carefully lower them back down as not to drop them in and shatter them. Then remove door card/s you should have access hols where the screws / bolts will show where you can see them to check if the rubber has gone or the clamps that hold the rubber around the  window have come loose.