Sky Cabs — driver

Address:

Hyderabad, Andhra Pradesh

Hello,
Today 17th november i took a skycab from rajiv gandhi international airport to my society. (Approx. 20-25 km) the driver showed me that the amount is rs 720 but he charged extra rs 225 (As transport hub fee) and toll tax rs 30)
He did not give me any receipt of the ride. The drivers name is ganesh.
I want to know why receipt was not given to the customer and the amount he showed was rs 720 included all charges but he charged extra.
It is very disappointing that renowned company like sky cab, the taxi drivers are cheating the customers.