Hello 'spyderwebbtango',
Those transactions were not "missed", rather when you buy from the same seller
within one week, from Monday to Sunday, - no matter how many individual items
you purchase, it only counts as one.
The reason for it is largely to keep people from artificially raising their own feedback
numbers.
This link will explain all about how the feedback score sheet works:
http://pages.ebay.ca/help/feedback/howitworks.html#how
