System totals out $15,805 - Client is only liable for the payment of $12,805 as Tech Clean California Rebate covers remaining $3,000 balance. UPDATED INVOICE DETAILS-- Payment collected by technician on April 8, 2022 of $1,385 was refunded on to the original install price- New install price is $14, 402--- Client is liable for $11,402 and $3,000 will be covered by CA Tech Rebate