public function listAdminBilling()
 {
     $charges = Charge::first();
     $id = $charges->id;
     $invoice_gen = $charges->invoice_gen;
     $sms_send = $charges->sms_send;
     $report_gen = $charges->report_gen;
     $payment_receive = $charges->payment_receive;
     $note = array('error' => false, 'id' => $id, 'invoice_gen' => $invoice_gen, 'sms_send' => $sms_send, 'report_gen' => $report_gen, 'payment_receive' => $payment_receive);
     return $note;
 }