Forgive me asking but you say you had a charger for your ZS, what happened to that?
If you don’t take the charger because you have one you get the BP pulse subscription which reduces the rates at all their chargers.
Yeah EV and not home charging is just a big no.
As for your email don’t email angry, go off calm down, have a nap whatever then come back and get just the facts down no wander, sarcasm etc and send it.
Good luck