EV charger recommendation

Hi all

I've been asked to install an EV charger in a new small block of flats. I'm assuming this charger will be owned by the freeholder.

Therefore I'm thinking there will be no internet connection so the charger will need 4G connection. 

The freeholder will then somehow receive payment when the residents charge their vehicles.

I normally fit Zappi, but they don't have this facility.

Not too clued up on this and have little info at the moment.

Tia

Dave