I thought there is an increase in bus fare when I tap out. Went to smrt website to check, the fare isn't right. Yes, a small amount but imagine how many people on that bus paying extra small amount? It's the second time that happened to me, I manage to claim it but I am wondering, how many know they been over charge and can claim back!? Seem like a good way to earn extra income this way, just be careful on your next bus trip.