They credit reward points after about 8 to 10 days. I hope you activated the offer before paying and Did the transaction in the time limit provided. Did you receive sms and OneCard app notification confirming the points? Alternatively, to check the points go to rewards tab in OneCard app and then go to Offers around you tab and then press skip button at the bottom, now on the next page press history icon on the top right corner of the page and here you will be able to see your points history. If the points for your transaction were recorded then you'll be able to see them here as pending. If not then contact OneCard customer service.