I've also had problems with securecode can my bmi mastercard. I find it hit and miss. Sometimes it won't process the transaction even though my code is entered correctly and other times it will. I used to always pay my council tax with my bmi mastercard but since I signed up for securecode I simply can't anymore as it keeps giving me an error. They are introducing it for Maestro cards now as well but I have refused to sign up for this because I want to have at least one option to pay with.