It's sad to be forced to pay an extreme extra amount without any warning (30 days is worthless compared to the pricehike).
I can't remember any other situation where I have felt so screwed over as now - and that's comming from the Corona team - who had a reputation of beeing userfriendly and fair.
It's not only Chaos who's having a hard time now - it's also their users.
I don't like this at all, and find it totally unacceptable.
Default moving everyone to premium plan is one thing, world-wide economic situation is another thing where inflation is spiraling.
While I do understand that people are upset about the price hike, Corona team runs a company not a foundation and this means it needs to be profitable and also has to struggle with higher running costs such as rents, salaries etc. You should probably take this into consideration.