Please see example below:
Outdoor model number: AOTG54LCTL
Outdoor serial number: T013677 - Your serial number will start with E, R or T and is always followed by 6 numbers.
The indoor model number can be found on your Tax Invoice. If not, please contact your supplier.
This is the tax invoice issued by your supplier and should show purchase date and nil balance owing.
This should be an eftpos receipt, bank statement or cash receipt.