What was the £25 for?
Did you get a cancellation email confirming it?
Put a payment PIN on your account to prevent any new subscriptions starting without your say so.
Go onto live chat to get this sorted, nothing will be done on this forum. Make sure you click “chat online” within the green box, don’t hit “get help quicker” as this is a bot.
If you are positive you cancelled the membership(s), request ALL devices to be signed out and change your password during the talk with live chat.