[Resolved]  Indane Gas — do we need to pay more than the rate of the cylinder on the consumer bill for home delivery

do we have to pay the amount on the bill given for the domestic cylinder for home delivery or more. the delivery boys r asking for more than the bill amount.
and for how many days r u entitled to book the gas. is it for 21 days or 30 days. kindly respond immediately
they r harassing us. gas connection no is 20188 and is with kanaka durga gas agency guntur town ,andhra pradesh