Cancelled my American Express Credit card

Just called in the American Express and cancelled my American Express KrisFlyer card, as after one year, they start to charge the annual fee, for around 250 SD, and it cannot be waived, during the conversation with the customer service, they offered the 50% off of the annual fee, I don’t think it’s worth it, so just cancelled the card, The benefit of this credit card is great, you can credit the KrisFlyer miles, and with 4 Complimentary airport Lounge Accesses, I used it all at Changi airport, not bad.