http://www.uob.com.sg/personal/cards...visa_card.html
UOB Preferred Platinum Visa Card
It's been more than a month since I exceeded the 24000 UNI$ limit and UOB has not reversed back the bonus UNI$. I made some $5 payWave transactions on 8th Dec and still earns 10x.
I am certain that there is no 24000 UNI$ limit in a calender year. It's UNLIMITED!!