Refund because of service ending

For a long time I havent used memrise and I wont use it anymore. You have annouced via mail on March 2019 that all courses will be ended in the memrise site. So I didnt think of cancelling the subscription.
But you have charged one year subscription again on 24.04.2019. On 01.05.19 I filled out the refund form and sent e-mail to support, but no progress so far.

A service, that is going to cancel CANNOT charge any fees, THIS IS UNFAIR AND UNLAWFUL.
Please refund all of my 3 accounts asap and let me know, otherwise I’m starting to think you’re a FRAUD!!!