So was your car a Plug In too or full electric? As I know that for full electrics you don’t need to do anything yourself ( but unfortunately for Plug ins you do ).
We have a PHEV a plug in hybrid, regardless of whom you use be it BP Chargemaster, PodPoint etc, your installer will still require you to sign some declarations of entitlement online. The declaration is very simple even for a Numpty like me.
Podpoint charge you upfront at time of application, when we applied it was £350 for a tethered 32amp/7kW EV home charger, I believe it is now £390 for a tethered 3.6kW and £440 for a 7kW.
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.