Maybe the wiring has gone? Have you been to get it inspected? How long have you had the car?
Apologies no idea why I didn't get an email for this reply.
I have had it for about 5 months and its been like that since I've got it. Regarding the wiring, i suspected the fuse isn't working but um it isn't mentioned in the manual which fuse is for the boot/tailgate release. Also idk if it's normal but when i put the key in the boot it can only unlock by turning right but turning left doesn't do anything im not sure if this is normal (since there is no button anyway to open the boot so having the key turn left to lock anyway is overkill) but still not normal so im unsure.