Based on the following nopCommerce forum post - https://www.nopcommerce.com/boards/t/51565/get-products-in-comparison-list.aspx, I noted here a possible solution to resolve the issue.
Based on the following nopCommerce forum post - https://www.nopcommerce.com/boards/t/51406/free-instead-000.aspx, I noted here a possible solution to resolve the issue.