0, 'to' => 50000, 'amount' => 500 ), array( 'from' => 50000, 'to' => 150000, 'amount' => 1000 ), array( 'from' => 150000, 'to' => 300000, 'amount' => 1500 ), array( 'from' => 300000, 'to' => 16000000, 'amount' => 2000 ) )); } }