I wish to have a breakdown/list of insertion fees over the last 28 days.
all fees are in your ebay account
Go to my ebay > account > seller account.
You can have look at the full breakdown of any invoice you want to.
To get a breakdown of a specific type of fee, first go to my ebay and click on the 'account' tab at the top left.
On the next page click on 'all account activity' (underneath 'current balance').
Then click 'customise view' (on the right side near the 'print' button.)
Set the date range and click 'apply'. You'll then get a list of all the transactions for that period.
Click on the heading 'transaction details' and the fees then sort themselves into their different types. The final value fees will be in one section with a total at the bottom of that section.