How to I stop an unwanted subscription
Depends, how did you take out the memberships?
Was it on the website directly or through the app on a device like smart TV or mobile?
i used my iPhone - have managed to cancel both cinema and boost but have been charged £15.99 for a service that I neither wanted or used? Do you know how I can complain via email
You should be able to request a refund with Apple, as I did this for another subscription I accidentally took out.