What does the expiration reminder of 5G gold coins mean?

Mobile 5G gold coins can be exchanged for gifts in China mobile client.

For example, products such as traffic packets, SMS packets, and Internet content members can be exchanged with 5G gold coins. As long as 5G gold coins reach a certain amount, they can be exchanged for 10G traffic bimonthly package, 200 SMS package, and 1 month subscription for Migu members and video members.

In the exchange of 5G gold coins, the old users of China Mobile have a unique network age advantage. Users can exchange their existing points for 5G gold coins. The older the network, the more valuable the points are.