There is a letter circulating that appears to the reader as a genuine fraud prevention letter from Halifax.

The message reads in bold, We've had to block your account - please call us urgently

By checking ‘who called me’ it appears that the contact number detailed in the letter is linked to a banking scam from around four years ago. 

When contacting your bank, please remember to check the phone number for your bank on the back of your bank card, if you receive a convincing fraudsters letter with a contact number detailed within, you will be dialling straight into them and be at risk of being scammed. 

Please share this information with loved ones, especially elderly relatives or neighbours.