Platinum for what?!

I am highly disgusted with the service I got at OR Tambo International Airport Slow Lounge. I am a Platinum Account holder and one of the perks I pay for is Slow Lounge access. I was told they are currently not accepting Platinum Account holders as the lounge is too full. This is one of the few perks I enjoy as a Platinum Account holder and now I can't even use it? Why am I paying a premium if I am not getting anything for it? Maybe I should find a bank where the airport lounge is at least not over crowded all the time. At least they can try and make an arrangement, not just refuse me entry.