@72_dudes is right about charging, although given the pain some have suffered, going privately with Zappi might prove a better outcome. Might be worth checking with an electrician, can’t think off one off hand though? @kezo
I'm Autistic, if I say something you find offensive, please let me know, I can guarantee it was unintentional.
I'll try to give my honest opinion but am always open to learning.
Mark