Indian Oil Corporation [IOC] — Difference in billing. My consumer no.cx5560779

Address:	600083
Website:	indanegas customercare

I have booked on 12.12.2015 for refilling of indane gas for my connection no.cx5560779. I have received a message on 29.12.2015 that cash memo [protected] for Rs.622.50 is generated. But to day they delivered the gas againt cash bill no.[protected] dated 01.01.2016 for rs.671.50. When contacted the dealer for the two billings he informed that the gas was not delivered intime due to huge backlog and hence second bill raised on1.1.2016 with the new rate. I am loosing rs.50/- which you credit my account. And i have paid rs.700/- to the delivery boy including tips. The boys are demanding higher tips which also look into. Kindly do the needful.