public void InsertIPN()
 {
     var repository = new CustomerRepositoryHelper();
     var properties = new NameValueCollection
                      {
                          {"custom","1234|product"},
                          {"receiver_email","receiver_email"},
                          {"receiver_id","receiver_id"},
                          {"residence_country","residence_country"},
                          {"test_ipn","test_ipn"},
                          {"transaction_subject","transaction_subject"},
                      };
     Console.WriteLine(repository.InsertIPN(properties, "call"));
 }