Card fraud

Hey I have had my card used for a transaction on Amazon I didn not authorise it has used twice for Amazon once 143 and later 14.99 I now the 14 .99 I the 143 was not authorise but the other one I authored like a month or two months apart the 134 came first I could only think they got my card details from an ATM scam or another site I used my card I have evidence of my Amazon order and no 134 in the only 14.99 have wait d 3 days for a decision keep saying they so busy how long to get an answer l I didn’t see the transaction until a moth later as I don’t always check where money has gone just the Ballance can someone help me with this

If you’ve reported the transaction to Monzo, that’s all you can do. Now you have to wait for their response.