Credit Card Fraud with Argos Click and Collect

I beleive i had my card stolen before i received it, I received my PIN through, phoned the CC company and they said the card was used online in Argos

It appears they have ordered some electronic equipment online, and went in with click and collect, and all you need is an email confirmation with number, no id or anything

What will happen with charge as its my first credit card after getting my rating back on track