No featured offer although all the criteria are met

There is no featured offer available for my product, even though I am the only merchant offering the product. I have read the help article on factors affecting the featured offer and I meet all the conditions. Unfortunately, this has a very negative effect on visibility to customers.

What can I do to make my offer appear as a featured offer with a BuyBox on the product page?

Appreciate any help, thanks in advance 🙂