It’s worth quickly checking your email’s spam folder in case it was accidentally put in there. If yes, please add no-reply@argent.net as a contact, mark it as 'not spam' and retry the operation you were trying before in the wallet. Please note that the verification links are only active for 10 minutes, and use the latest, non-expired one.
Please note that if you have Argent X wallet with 2FA enabled, it is not directly related to your Argent mobile wallet, and you can't recover it in the app without importing it into the existing mobile wallet.
Otherwise please email support@argent.xyz and we will help.