I still haven’t received my tablet back so I just called LG to try and find out what went wrong. It turns out that it was an administrative error and it was actually another customer who is receiving their device back and mine is still awaiting repair!
The customer service agent (Danny) was very helpful, it has to be said, and has promised to escalate it – apparently a new PCB is required which was ordered a while ago but it is still awaiting delivery. Danny promised that I would be called back either today or Monday with an update which is good, at least I hopefully won’t have to chase it up again.
Source Article from http://www.keanei.eu/2015/09/18/lg-repair-update/