UKPassats

Our Passat estate will open the boot via the button inside the car in the drivers door, doesnt work on remote nor by trying to open the car from the outside by using your hand. Is it the microswitch thingy and if so whats the part no

On another matter i have had 2 passats over the last couple of years why is the boot lock where you put the key in cant be turned feels like its frozen solid and no amount of wd will shift it?

Thanks

Iain