Explain rating please

The app is simple and easy to use however no explanation is given why a specific company is given a particular rating.

There is only an overall explanation for all companies that 20 years of data have been reviewed but nothing per company.

Nor is there any reference to what data and the date of the data which is being used by each company. Companies are able to change supplies and affiliations quickly to respond to issues. Dated reviews are required to understand if a company has been able to respond to a rating.

Please could you provide more explanation per company as well as the date this review was done.

Kennet Waspe about Better World Shopper, v1.5