Misleading customers

Today I booked at Southern Sun Elangeni. After I paid they gave me a room on the 8th Floor, with a bath tub. I went to reception and complained that I want a room with a shower. Then the manger says me that I booked a Queen room thats why I got that room. I show her the confirmation from book. com that I have booked a King size room. Then the manger at Elangeni says me its not there fault its booking. com fault and booking. com is a 3rd party with regards to booking. I have booked many time with booking. com and this is the first time I feel that booking. com have mislead me. They advertise one thing and when we go to the hotel, the hotels just throw us in any room they feel like. Im in this room presently being a 5 star hotel, the aircon is pathetic. It should have been better if I spent the night at my, were everything works. In January 2020, I have booked all my hotels in overseas through booking. com. I will definitely reconsider when I am back home. Booking. com need to catch a wake up and stop misleading customers.