Bad service Sheraton hotel

Terrible service since arrival at the 5 star Sheraton hotel in Pretoria. Had to wait in a que for 1 and a half hours to book in. No chairs were offered to sit on or even something to drink while standing in the que. After mentioning our dissatisfaction, we were upgraded to a " better suite". In the suite the aircon did not work, there was no hot water in the bathroom, we were given a small heater to warm up the room, with no effect.The bathroom had no bathroom mats. The white bedding was an off white colour. Paid the hotel account when we booked in, only to be informed the night before we left that we were undercharged. The 3 nights spent in the hotel was a disaster from the beginning to the end and very disappointing, not what one would expect from a 5 star hotel. Would definitely not recommend this hotel to any locals or foreigners.