```ruby
# coding: utf-8

require_relative 'abstract_request'

module ClientForPoslynx
  module Data
    module Requests

      class DebitCardSale < AbstractRequest

        defining_property_value attribute: :command, element: 'Command', value: 'DCSALE'

        attr_element_mapping attribute: :merchant_supplied_id, element: 'Id'
        attr_element_mapping attribute: :client_id,            element: 'ClientId'
        attr_element_mapping attribute: :tax_amount,           element: 'TaxAmount'
        attr_element_mapping attribute: :amount,               element: 'Amount'
        attr_element_mapping attribute: :input_source,         element: 'Input'
        attr_element_mapping attribute: :track_2,              element: 'Track2'
        attr_element_mapping attribute: :track_1,              element: 'Track1'
        attr_element_mapping attribute: :card_number,          element: 'CardNumber'
        attr_element_mapping attribute: :expiry_date,          element: 'ExpiryDate'
        attr_element_mapping attribute: :cash_back,            element: 'Cashback'

      end

    end
  end
end
```

Remove invalid TaxAmount element from DCSALE
user
```ruby
# coding: utf-8

require_relative 'abstract_request'

module ClientForPoslynx
  module Data
    module Requests

      class DebitCardSale < AbstractRequest

        defining_property_value attribute: :command, element: 'Command', value: 'DCSALE'

        attr_element_mapping attribute: :merchant_supplied_id, element: 'Id'
        attr_element_mapping attribute: :client_id,            element: 'ClientId'
        attr_element_mapping attribute: :amount,               element: 'Amount'
        attr_element_mapping attribute: :input_source,         element: 'Input'
        attr_element_mapping attribute: :track_2,              element: 'Track2'
        attr_element_mapping attribute: :track_1,              element: 'Track1'
        attr_element_mapping attribute: :card_number,          element: 'CardNumber'
        attr_element_mapping attribute: :expiry_date,          element: 'ExpiryDate'
        attr_element_mapping attribute: :cash_back,            element: 'Cashback'

      end

    end
  end
end
```
assistant