Well, communication with China is often difficult but, you can use Google Translate or Babelfish to turn your (carefully spelled and grammatically correct
) English into Chinese.
Then use eBay Messages to send both English and Chinese to the seller.
It may be an error in his listing.
Ask politely for either a tracking number that shows it is on its way or a refund.
Some Chinese sellers have stopped shipping to Canada because so many parcels are being held either by CBSA (fentanyl) or Canada Post (UPU) and they are tired of losing Item Not Received claims.
Politely-- Captain Malcolm Reynolds