Visa Officer congratulated and said Visa is approved and took Passport but CEAC status Refused

During the interview for K1 visa, the VO after interviewing, congratulted and said “Visa is approved” and took the passport. He did not give any 221g or any other form and said, “You will receive a SMS to pick up your passport”. It has been 7 days since the interview but the CEAC status shows “Refused”. I am shocked on seeing the status and no communication at all from the US embassy. Can you pleas let me know what is the true picture about this status and when can I expect the passport?