can one person trade Sp for CSC ??

yes...you can buy it from user shops in the gift card form (500 credit gift card etc...) but it's quite inflated at the moment, probably due to upcoming black friday sale

yes i need CSC for the black friday and there is a few items i want from the pawnshop

Well right now it's like 21m sP for 500 credits...you can try making a board in the wanted forum to see if someone will sell it to you for cheaper :)

then i better make more sp... i got only 50 mill sp .. haha

thank you