Credit card fraud

[Kai1981]

I've had two items of post delivered where someone has applied for a credit card in my married name (now divorced). I live in a block of flats and both times, the flat number was wrong on the post but the postman must have recognised my old address and delivered it to me.

I've spoken to Royal Mail to see if they can help but they said the letter should have been delivered to the correct address and the postman shouldn't have passed them onto me.

Is it likely that someone in my block of flats is behind it?

And other than checking credit reports and reporting to Action Fraud, is there anything else I can do?

So someone applied for a credit card in your name and then you accidentally received the credit card? I have had this I assume they were planning to fish the credit card out of my post box before I saw it.
You need to ring the credit card companies and let them know so they can close the accounts. Then they send you a letter to say they have done it.