I was nearly duped this morning by a fake First bank staff

A woman called me this morning claiming to be calling from my bank, that I have qualified for 10K palliative. I don’t even know what hit me, that I called out my bank account number, the 3-number CVV number at the back of my card, and the last four digits in front of my card. Maybe because it was a woman. Lucky for me, I made mistake with the last four digits. Before she ended the call, I heard another voice saying “yes he don send am”, that was when it dawned on me that I just read out my details to a scammer.
Please beware and don’t send/share bank details with strangers over the phone.