Pinapple is ****ming me

I am so furious with Pineapple, i previously had insurance with them which was cancelled, so i asked them to reinstate the insurance and i was told i would have to take out a new policy so i got sceptical after the quote was higher than wat my previous installment was and i decided to look for another insurer. i then asked them to requote me again on the webchat and before i knew it i was sent policy confirmation emails and premiums being deducted on my account, i have no agreement with Pineapple and my bank is charging me for these failed debits and i know for a fact that this cannot be lawful and if they do not correct it i will go as far as writing a formal complaint to the consumer protection board. someone must account for those debit orders and that someone must provide me with prove of authorisation to debit my account.