Hi@Irena
I have had the same but in pence rather than euro cents.
This was followed up by an email in my air bnb profile inbox from an individual saying that the security code I sent them for a booking has not been accepted.
1) There are NO bookings as my calendar is closed until early summer next year as I only host for a couple of months per year.
2) Security code?..... what security code as I have never or ever send a security code for any bookings made.
I HAVE NOT opened the email as I just saw the subject heading.
I think it is either a computer virus so this is my reason NOT to open this email or it is a phishing operation for a scam or identity theft.