'Dumbing down' the size of Gaviscon tablets (yet still labeled as being 250g)

Dear Peter...

I trust I am using this forum correctly. I want to formally log a complaint against businesses that have/are over the past decade slowly reducing the size of their product without any concomitant reduction in price. For a few years now I have seen some favorite consumption products that i use slowly have them reduced in size...with the retail price staying the same and in some instances actually being increased.

The one I am particularly focusing on right now is the Gaviscon tablet produced by Reckitt and Benckiser. I am attaching photos of two sleeves of these tablets. The one on the left was purchased around 2015 and the one on the right in 2018. It is glaringly noticeable that the size of each tablet is reduced whilst they still claim in the packaging that they are both 250g. They even have the cheek to leave the smaller version (one on the right) in 2015 packaging i.e. it clearly is too small for the slot provided for it!

I find the 'dumbing down' of product over time extremely ********* that shows a severe lack of integrity and honesty from the R&B Executives who clearly sanctioned this devious marketing activity.

Please advise how I can attach the two photos that support this review?