Superlive App Charged £22.39 Without Authorization

I live in England and today an amount of £22.39 was taken from my bank card for a transaction related to the Superlive app, even though I did not knowingly make any purchase. I had previously entered my email and details into the app, but I did not intend to confirm or complete any paid transaction, so this charge came as a complete surprise. I request that the £22.39 taken from my bank account without my clear and informed consent be refunded back to my bank card as soon as possible. I also ask for clarification on how this payment was initiated without my explicit approval, and for any similar future charges to be prevented.