Not sure what is happening here, but it's not related to a Corona Trial:
- There is no 3 month Corona Trial. That sounds more like an NFR.
- To get a Corona Trial, no payment details are taken, so an autocharge is not possible.
- Trials do not auto charge and turn into subscriptions, they simply end. So even if your Chaos account had payment details in it e.g. for another Chaos product, the Trial will not charge you, while running, when it expires, not ever.
This is important to clarify, as don't want anyone feeling frightened to use the Trial, so correct information is important.
The last detail is emails are always sent out when a renewal is coming up, so whatever this was, you should have notification somewhere (be sure to check spam etc.). Last, and most important for the poster now that we've covered general information for those who come across this post, do please send in a ticket via
https://support.chaos.com/requests/new . Be sure to let them know the email of the personal Chaos account that was charged, but since you mention there may be some crossover or mix up with company accounts, please let them know the emails for those Chaos accounts too if you are able to do so. That way they can get a full picture of what is going on and be able to help out.
Do note it has to be by ticket, because the support team here doesn't have access to billing and licensing set ups, it's just the technical side of things handled on the forum. Sorry to hear you've had some trouble, and thanks for taking the extra time to send in the ticket to get things looked into!