Help !!! started off with 5 doors. drivers door fine. rear seat doors only one will not open at all now and other will open once you are in an ,manually open it from inside. Boot/rear door has decided that it will not lower the window and appears to have gone up a bit to far so wont fit under the seal. Can i fix this or is it an expensive job, Oh and passenger door wil only open from outside. I am worried as i have kids and this is not safe. Any help greatly appreciated. Thanks