Hey @Blue79,
Welcome back to the community and thanks for taking the time to post.
That does sound like a scam call because we would ask you to pass account security but that doesn't include asking for bank details.
I have looked into this and can see that a technician has been booked for you, this should now be showing on your online account.
Do you remember around what time the call was? As I can see notes on our system from Sunday.
Regards,
Steven_L