Ask HN: Anyone form Amazon? Can you fix this UI-Gore

I am trying to order some WHEY protein. When I choose the brand I want, on the left I have an option for flavours. If I click on some of these flavours Amazon decides I don't want WHEY anymore, but instead want CASEIN and changes it without notifying me. This is the 3rd time I fall for it and order wrong product without realizing.

Imagine going to Toyota website, choosing Corolla, and then choosing color Red, and the website decides you don't want Corolla anymore but you want Camry!

Tried to bring it up to the attention of support but of course they didn't do anything.

Demonstration video:

https://youtu.be/dDnWspgUw6M