InstaGC points cannot be used directly for in-store purchases like cash or credit cards. Instead, users accumulate points by completing various tasks such as surveys, offers, and other activities on the platform. Once enough points are earned, they can be redeemed for gift cards to popular retailers or for cash through PayPal. This means that while you cannot directly use InstaGC points for purchases, the gift cards or cash obtained from redeeming those points can certainly be used at various merchants. It is important for users to explore the available redemption options on the platform to understand the different gift card denominations and payment methods that can be accessed with their earned points. For specific details and current offers, users may wish to visit the InstaGC website directly.