Filters not working on search api

[pelican_picks]

Hi everyone,

I'm using the eBay Browse API (/buy/browse/v1/item_summary/search) to retrieve items from a specific seller, filtered by category and minimum price.

However, it seems that the "price:[40..]" filter is not working as intended — I still receive items priced well below €40 in the results.
I also get a lot of items from other sellers, which are not from the seller that is selected.

I also tried a price range or search terms but without sellerId, but face the same issue.

Here is an example of my query parameters:

params = {
    "filter": (
        f"sellers:{{my-seller-name}},"
        f"price:[40..],"
        f"conditionIds:{{1000}}"  # NEW items only
    ),
    "category_ids": 123456,
    "limit": 200,
    "offset": 0
}

The final query:

https://api.ebay.com/buy/browse/v1/item_summary/search?filter=sellers%3A%7Bacerstoredeutschland
%7D%2Cprice%3A%5B40..%5D%2CconditionIds%3A%7B1000%7D&category_ids=631&limit=200&offset=0

Is this a known issue with the price filter or am I doing something wrong here?
Is there some kind of specifier needed for currency?

Any insight would be appreciated!

Thanks in advance.