FYI
This is the answer I got when I asked for more details about renting a Tesla from them:
"You have the option of booking the charging service (PF) when you pick up the vehicle, in which case you no longer have to charge the vehicle when you return it. The station will then take over the service for you and fully charge the vehicle upon receipt.
For the duration of the rental period, you will receive a free Shell Recharge card from us, which you can use to pay at certain charging stations (Shell Recharge app required).
You can also use the Tesla Supercharger via the Tesla App, you will be charged by us afterwards."
Good luck figuring out how to charge.
Will come back after the rental