Indane Gas — Over charging for new connection

Address:

sector 40

I called indane gas (Jai Gas Service) Address: Sco-76 First Floor, 40C, Sector 40C, Sector 40B, Chandigarh, 16003, I asked for a new connection price and they said it will cost you 2800 rupees only for cylinder and copy. because I only need 1 cylinder. but when I checked the price on the indane website it is only 1450 security deposit for a new connection. what to do where to go