@Korina Thanks. I've now taken out the year subscription and cancelled the automatic renewal.
On principle I won't subscribe to anything where there is no easy control over the renewal process. In the past, there was a genealogy site where the subscription could only be cancelled by phoning the company a week before renewal. Comments from people who had done this found that it was almost impossible to cancel by just saying "I want to cancel" to the person at the other end!