I rang up my bank/credit card and asked them to remove the direct debit.
I signed up and quickly realised it was a scam. I've called Barclaycard and they've blocked any further transactions from funlizard.net.
Barclaycard have just put an alert on this scam. Hopefully reading this won't be too late. ANSWER- RING YOUR BANK/CREDIT CARD AND GET THEM TO BLOCK ANY TRANSACTIONS.