Amul Dairy — Rate of product

Address:

Anand, Gujarat, 388001

I daily bought amul gold and amul butter milk, The MRP is 26 and 11 Rs. Respectively.
But retailer always takes 27 Rs. and 12 Rs. as additional charge like cooling and transport etc...

That means for one liter of gold milk we have to pay 2 Rs. more and same for the butter milk and other milk like taza, shakti etc..

So on what basis they are taking extra charge?

Amul had given the permission to take any extra charge more then MRP?

We have no other choice thats why they are taking extra charges and amul dairy not taking action till now for the same.