Hi.I just got my first gas bill and it shows that I was charged by "Special Meter Read Fee-DR" twice. The fees are different. The first one is $5.16 and the second one is 9.64. How did the rate calculate? Did I need to be charged by this fee twice each month? The thing is the reading in this bill is estimated and the actual reading does not happen. Could anyone help me to figure it out? Thank you so much.