How along ago did you schedule it? Since you are in the UK, I'm assume 2017, right?
Not the thread to go into all of that, but It's done now.
And, Lord, those things are weird. Why do they have to produce such a symphony of constantly-changing different industrial-type noises? They go from chunka-chunka-chunka to buzzing noises, to clanking that rises in pitch and volume as if it's going to end in an explosion, then back to the chunka-chunka-chunka again, then more buzzing. Are all the different nosies an unavoidable part of how it works, or do they just add them in as a kind of theater, in order to convince you it's doing something?
I could have just stayed at home and listened to my Einstürzende Neubauten cds.