We gave them the option to lock in their account or to wait for expiry of their card and then get charged the new amount.
Most chose to lock in, and a very small number of them still have that rate even 3 years later.
We have fewer members now but that is due to other reasons.
Cancellations for the locked in accounts went down because those people thought they were getting a very good rate and knew that if they canceled and would sign up again it would be at the new rate.
At the time our retention was 3 months, so within 3 months the larger portion of the accounts were being charged at the new rate.
What happened to the existing users when you doubled the price? Did your cancellations go up? Or did you freeze the price for the old users?