Synchrony Bank Credit Card Complaint

Synchrony Bank Credit card department,

Identity theft / Fraud / Embezzlement New York

Someone logged on to one of my credit card accounts as me, changed the mailing address, added himself as a user and turned off fraud alerts. No charges were made but Synchrony bank handled it horribly. Not only did they not check with me first - despite the fact that I have never lived or had dealings with anyone in the state he claimed to live in - but after I closed the account they sent a new card TO HIM. I later canceled the card entirely and also another card the bank owns. I called to double check and one card was still open. They are awful.