public static function billadjustment($account_id, $for_month, $amount, $bill)
 {
     $bill_info = Billinformation::where('bill_no', $bill->bill_no)->get();
     foreach ($bill_info as $key) {
         $amount_id[] = $key->adjustment_id;
     }
     if (count($bill_info) == 0) {
         $amount_id[] = NULL;
     }
     $bill_amount = Adjustment::whereIn('id', $amount_id)->sum('amount');
     if ($bill->adjustments == $bill_amount) {
         return $bill_amount;
     } else {
         if ($bill->adjustments && $bill_amount == 0) {
             $adjustment = new Adjustment();
             $adjustment->account_id = $account_id;
             $adjustment->for_month = $for_month;
             $adjustment->amount = $amount;
             $adjustment->date = date('Y-m-d');
             $adjustment->remarks = "billadjustment retransaction";
             $adjustment->is_considered = 1;
             $adjustment->save();
             $bill_info = Adjustment::adjustments($adjustment->id, $adjustment->account_id, $adjustment->for_month);
             return $adjustment->amount;
         } else {
             if ($bill->adjustments != $bill_amount) {
                 return false;
             }
         }
     }
 }