Point card can only be used as recharge time, not as gold coins. World of Warcraft gold coins are all obtained by doing tasks, fighting monsters or trading with other players. In the game, you can use the point card to conduct private transactions with other players to obtain gold coins. Of course, this is unprotected and often leads to the phenomenon of being cheated. In addition, some websites also sell gold coins of World of Warcraft, but they may be black gold hunted by Netease, which is easy to be blocked.
The difference between Battle.net card and World of Warcraft card is that Battle.net card can be used to recharge Battle.net and deposited in Battle.net Pass, which can not only recharge World of Warcraft, but also recharge other games such as Star Trek under the same Battle.net Pass, while World of Warcraft card can only be used to recharge World of Warcraft game time.