Conned - no mention about using an offsite subsidiary when making the booking.

Specifically booked for an on-airport vehicle rental only to discover the booking had been passed on to another company 'Gold Cars' who have an awful customer satisfaction record. Had to locate a waiting minibus and shuttled offsite to their depot a few km away. Vehicle ok but they then tried to get us to pay extra insurance which wasn't compulsory and I had already purchased a one-off policy from a UK company to cover any excess. They then made us pay a "Diesel Tax". Checked this out on the Gold Cars website and this should only be paid if you specifically request a diesel (which we didn't). Tried to get a refund when vehicle returned but was told to take it up with the Co I booked through - I look forward to hearing from you!!! Had to wait around for a while for the return shuttle back to the airport. Shuttle bus consequently full and boot overfilled resulting in a dented case. Not happy!