H.P.gas
Delivery time

Dear sir,

I am from hyderabad and am a HP gas customer i want to know that as if i am receiving a cylinder on 18 oct then after how many days i can booked the other cylender is there any circular for that because by dealer is telling that you cannot book the cylender again after 21 days i should complete 40 days after the date of delivery then only we can book and after that also they are taking 21 days for delivery

i request you to please helpp me out for thisand plz send a circular copyof that