before the amk bus interchange was built, my bus fare was $1.18
when i alighted at the jubilee bus stop. today when i got off at
amk hub, i was charged $1.48. 
why am i charged 30cents more when it is still 1 fare
stage from the previous bus-stop? 
are all SBS buses using GPS in updating fare stages? or is it
because the bus i am in is still using manual updating, hence the
discrepancy when the bus driver forgots to update the fare
stage?
