Maybe this is why ZOS does not respond to most ESO+ crown issues. According to Microsoft's support page, ESO+ subscriptions are their responsibility. I found the support link below over at support.xbox.com .....
https://support.xbox.com/en-US/xbox-one/games/elder-scrolls-online-tamriel-unlimited-help
Contact Bethesda Softworks Support if you have questions about the following issues:
- Logging into Elder Scrolls Online: Tamriel Unlimited
- Purchasing items using crowns
- ESOTU account information
Contact Xbox Support if you have questions about the following issues:
- Managing your ESO Plus subscription
- Buying crowns
- Signing in to your Microsoft account or Xbox Live profile
- Your bill
- Downloading and installing games on Xbox One