fix - pos product company fee come from Wage model in core

apps/product/pos/api/v1/viewsets/product_api.py

@@ -8,6 +8,7 @@ from rest_framework.response import Response
 
 from apps.core.mixins.search_mixin import DynamicSearchMixin
 from apps.core.mixins.soft_delete_mixin import SoftDeleteMixin
+from apps.core.models import Wage
 from apps.pos_device import models as pos_models
 from apps.pos_device.mixins.pos_device_mixin import POSDeviceMixin
 from apps.product import models as product_models
@@ -106,7 +107,7 @@ class POSFreeProductsViewSet(SoftDeleteMixin, viewsets.ModelViewSet, DynamicSear
         request.data.update({
             'organization': organization.id,
             'device': device.id,
-            'company_fee': product_models.Broker.objects.get(name='شرکت').fix_broker_price,  # noqa
+            'company_fee': Wage.get(key='MNPC'),  # noqa
         })
 
         serializer = product_serializers.POSFreeProductSerializer(data=request.data, context={'device': device})