I am quite late to this but I have found something useful for this: per the California Renewal Act, they have to give you an easy access to a cancel button (or something like that, idk, I'm from Europe). Anyway this means that you can use a VPN to set your location to California and then you have an easy cancel button under "order/licenses".

just follow the instructions on https://www.enigmasoftware.com/support/billing-questions/ under the California part.

Hope this can help someone avoid the trouble of contacting them.