Buy on spot lounge access at Terminal S in Airport

I have a 7 hour layover at Jeddah International Airport in Terminal S (Flight no: SV 802). Can anyone tell me if I can buy on-spot lounge access there? I did some Googling, and found that there is one lounge in Terminal S. But I could not find if I can just show up at the lounge and buy access.

This information would be of great help. Thanks in advance!