I deleted a calendar subscription but it re-appears in a few minutes.

There is a known issue with deleted calendars reappearing in Google Calendar after deletion. This issue is not related to WebCal.Guru.

If you encounter this issue, please take a look at Google Calendar support site. There are multiple threads of a similar issue. Currently there is no known way for user avoid or fix this issue.

• Cannot remove or hide two of my subscribed official google calendars on all devices
• Cannot unsubscribe from internet calendar
• I can't delete a calendar
• Solution to unsubscribed calendars reappearing.