The reasons why the copper coins sold by Nishuihan mobile game did not arrive in the account are as follows:

1. Network problems: For example, when purchasing copper coins, network problems or unstable connections were encountered. , causing the payment process to be interrupted or incomplete. Please make sure your network connection is stable before purchasing again.

2. System problems: Sometimes, there are malfunctions or problems with the game server or payment system, resulting in purchases not being processed correctly. This requires contacting the game's customer support team to report the issue and provide relevant payment credentials to help resolve the issue.

3. Delayed processing: The purchased copper coins will take some time to be processed and arrive in the account. This is a delay due to long system processing times or other factors. You can wait for a while to see if you receive the purchased copper coins. "Ni Shui Han" is a multiplayer online role-playing game (MMORPG) developed by Kunlun Wanwei, a famous Chinese game development company. The game is based on the ancient rivers and lakes, and integrates elements such as martial arts, rivers and lakes, art and music, and is committed to presenting players with a real and gorgeous world of ancient rivers and lakes.