Help

What is K+ Market ?
Can points earned from spending with a supplementary credit card be redeemed for the purchase of goods on K PLUS ?
If I want to redeem points for the purchase of goods on K PLUS, do I have to pay a delivery fee ?
If I want to redeem points earned from multiple credit cards, do I have to add all of the cards to K PLUS ?
Can I transfer points from one credit card to another ?
When will points be deducted after I have redeemed them for the purchase of goods on K PLUS ?