Do you have a on your Best Buy card that you are looking to convert, or
: Platforms like CardCash or Gameflip allow you to sell your Best Buy gift card for cash or trade it for a GameStop gift card, though you will likely receive slightly less than the full face value.
No, as a direct form of payment . Because GameStop and Best Buy are direct competitors, their gift cards are generally restricted for use within their own respective stores and websites. Why You Can't Use Them Directly