It's a scam to sell low-priced prepaid cards. In fact, prepaid cards can only be discounted at a minimum of 97%, and that kind of discount card simply can't exist. The specific method is to ask you to pay a small deposit first, and then send you a large number of cards, but none of them can be recharged, and you will be told that you need to open them to recharge them. However, if you open them, you should pay the rest of the fees, and then let you continue to remit money for various reasons until you have no money or wake up.