I have had an overdue payment for my broadband and recieved an email from [email removed] to call 03337 594 851 about making the overdue payment. I called and after some legitimate security questions (Including last 4 digits of my card) I got supposedly forwarded to the accounting help centre. I was then asked for my credit card details point blank as well as my mothers maiden name. Additionnaly I was told that I can only "restore" / unblock my account via this call centre (This turns out not to be the case you can just as easily do it online. )
I do not know if it was legitimate or not. If it was legitimate then I must say this is a very bad security practice.
I would apprciate any explanations to what had just occured.