def create_refund(options = {}, &block)
      options = set_options(options, &block)
      post('refunds', options)
      @response.success? ? Instamojo::Refund.new(@response.body[:refund], self) : @response
    end
def create_refund(options = {}, &block)
      options = set_options(options, &block)
      post('refunds', options)
      @response.success? ? Instamojo::Refund.new(@response.body[:refund], self) : @response
    end
POST /refunds