Requested for AF waiver over the app and was called by the CSO few days later saying that they will send in a new request for waiver. In the end, still didnt receive waiver and chatted with CSO using the UOB chat before finally getting a waiver the next day. Seems like spending more than 12k per year still does not mean that auto waiver will be granted now.
Even worse for Amex absolute, since the card was overpaid by a few cent, not even possible to request for waiver via the app. It just outright fails and says that there is outstanding payment. In the end, chatted with the CSO today via UOB chat to say I want to cancel and they asked the reason why. Told them that AF waiver unsuccessful and want to cancel, they replied that they sent in a manual request and it was approved on the spot.