I have cancelled this card. Sent an email and the card disappeared from the app today. They didn't even bother to check the reason for closure LOL.
They have actually removed the LTF offer on this card for me to and made 3L per annum spends as a minimum to get the fee waiver. I realized this only recently after seeing the spends bar that shows how much to go for 3L. Anyway I wanted to close this card for reduced benefits, however, after seeing that it's not even LTF, there were no second thoughts.