you might want to try here
http://forums.elderscrollsonline.com/en/categories/crown-store-and-eso-plus
what platform do you play on might be helpful.
Issues receiving crowns: We’re aware there’s an issue where you are not receiving your crowns after purchasing an ESO Plus membership, or seeing a significant delay after purchasing a crown pack. We’re working on a fix for both of these issues.
ZOS_TristanK wrote: »There is currently a delay in receiving crowns that we are actively investigating. If you do not get your crowns within 24 hours of purchasing them, please reach out to our Support Team for assistance here: https://help.elderscrollsonline.com/app/ask