I think you are each talking about different rebates.
Edison will pay you $1,000 when you purchase an EV and sign up for a TOU plan. This rebates increased from $450 to $1,000 as of 1/1/2019.
Edison will also pay you $500 toward the cost of permitting and installing a Level 2 charging station. This covers the labor to install the actual outlet.
I also received a rebate of $450 from the South Coast AQMD toward the purchase of a Tesla Wall Connector, but this is specific to certain counties within California, not the entire state.