> For the complete documentation index, see [llms.txt](https://box-best.gitbook.io/best-mystery-box/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://box-best.gitbook.io/best-mystery-box/english/for-players/common-problem/failed-to-buy.md).

# Failed to buy

### The user account must meet the following conditions before snapping up: 

1. Connected wallet; 
2. Account balance ≥ required margin; 
3. There are no unpaid orders in the last round;
4. Account is not locked; 
5. The number of orders to be paid in this round ≤ required margin/blind box pricing gap.