You can redeem Points to in-Store Cash [FLX Cash]

15000 Points = 5$ , means 300.000 Points = 100$

You can use FLX Cash as normal Balance to buy Socks, Shoes , Clothes.

You can return what you bought to get Money refund or GiftCards.

You can try to Hit CC as well by trying usual CVV bypasses, sometimes work, sometimes no. Try your luck.