I purchased a book and after a week still not posted I contacted seller who responded a few days later - had corona symptoms couldn’t leave house, all clear will post that day add tracking. Nothing for another week, contacted seller no response. Opened case. A few days later tracking number appears but still no reply from seller. Tracking not showing any update not scanned etc. eBay contacts me wanting a response, I reply still not received. They close case issue me refund saying tracking number not valid. Still no response from seller, now one week later I can see tracking, its on its way. I had left neg feedback item not received. Still haven’t heard anything from seller. What are my options now? Repay seller ? Remove neg if I can?