You'll need to return the tickets or fines to the issuing authority explaining that these don't relate to your vehicle because your plate has been cloned (it's a crime that's on the rise, so we're getting more and more reports of cloned reg plates). You should include any evidence you have which could prove that this is the case - the Volvo app should be sufficient to prove you were elsewhere. We also recommend you contact the DVLA who will keep this on record.