[NoodlePoodle]

The "missing Item" method, Is based against the nature of the Item, namely the weight. When used effectively, It works extremely well.

I only see sold by amazon.

Is this the case with "every Item" you come across?

Yes, I can see shipped and fullified by amazon on USA version of the site

Go to buying options where it shows a list including third party sellers, and select the one that says sold and fulfilled by Amazon. Normally it's prime delivery too.