Website states there is a 10% off all online Topup...

Website states there is a 10% off all online Topups with your NUS card - this is NOT the case. Instead, you're expected to call their premium number to learn that it was a temporary offer that expired in 2015. They don't provide call references either and apparently record all calls via an undisclosed call monitoring company. Spoke with Jafar on 07 January 2017. I wonder what else they are being dishonest about?