I have been using OneCard just for the nearby offers. It was quite good specially for Grocery, Medicine and some food chain stores. The offers ranged from 20-30% and generally refreshed every 15 days per store. From August they have reduced it to 10% for Grocery and food, 15% for Medicine. The offer refresh interval has also increased in average 40-50 days. All good things come to a stop, lets see if they change it again.