diff --git a/azbankgateways/banks/bmi.py b/azbankgateways/banks/bmi.py
index aa1c524..f0a1d82 100644
--- a/azbankgateways/banks/bmi.py
+++ b/azbankgateways/banks/bmi.py
@@ -4,7 +4,7 @@
 
 import requests
 from Crypto.Cipher import DES3
-from django.conf import settings
+
 from azbankgateways.banks import BaseBank
 from azbankgateways.exceptions import BankGatewayConnectionError, SettingDoesNotExist
 from azbankgateways.exceptions.exceptions import (
@@ -23,7 +23,10 @@ class BMI(BaseBank):
     def __init__(self, **kwargs):
         super(BMI, self).__init__(**kwargs)
         if not self._is_strict_origin_policy_enabled():
-            raise SettingDoesNotExist("SECURE_REFERRER_POLICY is not set to 'strict-origin-when-cross-origin' in django setting, it's mandatory for BMI gateway") 
+            raise SettingDoesNotExist(
+                "SECURE_REFERRER_POLICY is not set to 'strict-origin-when-cross-origin'"
+                " in django setting, it's mandatory for BMI gateway"
+            )
 
         self.set_gateway_currency(CurrencyEnum.IRR)
         self._token_api_url = "https://sadad.shaparak.ir/vpg/api/v0/Request/PaymentRequest"
@@ -105,7 +108,8 @@ def verify(self, transaction_code):
         if str(response_json["ResCode"]) == "0":
             self._set_payment_status(PaymentStatus.COMPLETE)
             extra_information = (
-                f"RetrivalRefNo={response_json['RetrivalRefNo']},SystemTraceNo={response_json['SystemTraceNo']}"
+                f"RetrivalRefNo={response_json['RetrivalRefNo']}"
+                ",SystemTraceNo={response_json['SystemTraceNo']}"
             )
             self._bank.extra_information = extra_information
             self._bank.save()
@@ -116,10 +120,13 @@ def verify(self, transaction_code):
     def prepare_verify_from_gateway(self):
         super(BMI, self).prepare_verify_from_gateway()
         request = self.get_request()
-        for method in ["POST", "GET", "data", "PUT"]:
-            token = getattr(request, method, {}).get("token", None)
-            if token:
+        method_data = getattr(request, "POST", {})
+        token = None
+        for key, value in method_data.items():
+            if key.lower() == "token":
+                token = value
                 break
+
         if not token:
             raise BankGatewayStateInvalid
         self._set_reference_number(token)