Driver Seat Won't Move Back

Have a 2006 Land Rover Range Rover Supercharged. Driver seat won't move back, forward only, and it's stuck fully forward. Any suggestions for manually moving power seat with cordless drill?

Had this on another car once, not a landy. The battery was knackered! Swapped for a new one and it started working again. Worth a check, the battery needs to be tip top

When we got the vehicle there was a problem with the battery. Had to be replaced. Then we noticed water coming in on the front passenger side... and shortly after that we couldn't crank the vehicle without a reset, removing/replacing fuse #20. So, the manual says this fuse is linked to the steering column and the driver seat. Now we notice it cranks every time we turn the key! Anyone see a video showing how to use a drill and attachments to move the seat? Found them for many vehicles but not enough available for the LR. Thanks in advance.

See if you can check for a voltage supply to the seat somewhere