Bharat Petroleum [BPCL] — complaint regarding extra delivery charges

Address:

Zaheerabad

First of all, i would like to know what's the prescribed amout of delivery charges. It's usually 20 is what we pay, but now the delivery boys are charging more. Today i have bought a cylinder worth 665, delivery boy came and took 700. On further enquiring how much delivery charges he said 35 while it's actually 20. I'm ready to pay the total delivery charges but what's this. This is absolutely cheating the customers. Either you prescribe a fixed amount of delivery charges or include that delivery charges within the amount you send.