diff --git a/easy_my_coop/models/account_invoice.py b/easy_my_coop/models/account_invoice.py
index 990beac..3b15c39 100644
--- a/easy_my_coop/models/account_invoice.py
+++ b/easy_my_coop/models/account_invoice.py
@@ -5,23 +5,23 @@ from openerp import api, fields, models, _
 
 class account_invoice(models.Model):
     _inherit = 'account.invoice'
-    
+
     subscription_request = fields.Many2one('subscription.request', string='Subscription request')
     release_capital_request = fields.Boolean(string='Release of capital request')
-    
+
     @api.model
     def _prepare_refund(self, invoice, date_invoice=None, date=None, description=None, journal_id=None):
         values = super(account_invoice, self)._prepare_refund(invoice, date_invoice, date, description, journal_id)
         values['release_capital_request'] = self.release_capital_request
-        
+
         return values
-    
+
     def set_cooperator_effective(self, effective_date):
         # flag the partner as a effective member
         obj_sequence = self.env['ir.sequence']
-        
+
         mail_template_name = 'Payment Received Confirmation - Send By Email'
-        
+
         # if not yet cooperator we generate a cooperator number
         if self.partner_id.member == False and self.partner_id.old_member == False:
             sequence_id = obj_sequence.search([('name','=','Subscription Register')])[0]
@@ -34,7 +34,7 @@ class account_invoice(models.Model):
             mail_template_name = 'Share Increase - Payment Received Confirmation - Send By Email'
         sequence_operation = obj_sequence.search([('name','=','Register Operation')])[0]
         sub_reg_operation = sequence_operation.next_by_id()
-        
+
         for line in self.invoice_line_ids:
             sub_reg = self.env['subscription.register'].create(
                                {'name':sub_reg_operation,
@@ -50,30 +50,41 @@ class account_invoice(models.Model):
                                            'partner_id':self.partner_id.id,
                                            'share_unit_price':line.price_unit,
                                            'effective_date':effective_date})
-        
+
         email_template_obj = self.env['mail.template']
         certificat_email_template = email_template_obj.search([('name', '=', mail_template_name)])[0]
-        # we send the email with the certificat in attachment 
+        # we send the email with the certificat in attachment
         certificat_email_template.send_mail(self.partner_id.id, False)
-        
+
         return True
-    
+
     def post_process_confirm_paid(self, effective_date):
         self.set_cooperator_effective(effective_date) 
-               
+
         return True
-    
+
     @api.multi                
     def confirm_paid(self):
         for invoice in self:
             super(account_invoice, invoice).confirm_paid()
-            if invoice.partner_id.cooperator and invoice.release_capital_request and invoice.type == 'out_invoice':
-                effective_date = datetime.now().strftime("%d/%m/%Y")
+            # we check if there is an open refund for this invoice. in this case we
+            # don't run the process_subscription function as the invoice has been 
+            # reconciled with a refund and not a payment.
+            refund = self.search([('type','=','out_refund'),('origin','=',invoice.number)]).filtered(lambda record: record.state == 'open')
+
+            if invoice.partner_id.cooperator and invoice.release_capital_request \
+                and invoice.type == 'out_invoice' and not refund:
                 #take the effective date from the payment. by default the confirmation date is the payment date
-                if invoice.payment_move_line_ids :
+                effective_date = datetime.now().strftime("%d/%m/%Y")
+
+                if invoice.payment_move_line_ids:
                     move_line = invoice.payment_move_line_ids[0]
                     effective_date = move_line.date
-                
+
                 invoice.subscription_request.state = 'paid'
-                invoice.post_process_confirm_paid(effective_date)        
+                invoice.post_process_confirm_paid(effective_date)
+            # if there is a open refund we mark the subscription as cancelled
+            elif invoice.partner_id.cooperator and invoice.release_capital_request \
+                and invoice.type == 'out_invoice' and refund:
+                invoice.subscription_request.state = 'cancelled'
         return True