To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I have added this to my monthly subscription, but can only buy one, which means I have to put in an additional order every week. Surely they could allow more in a monthly subscription, our daughter goes though one tin a week, so even buying 4 in a monthly subscription would not last the month and we would have to supplement it with extra from the supermarket, but at least it would be more reasonable.
I am happy to upgrade my review when they are able to change the maximum number I can buy.