You can unsubscribe in the following ways:

In the QQ Music client, click "More" → "Free Data Service" → "Details" → "Unsubscribe" in the navigation bar ” to unsubscribe.

Under China Unicom’s 2G/3G/4G network, in the Tiantian Kupao music game client, click "Special Events" >> "Data Package" >> "Details" >> "Unsubscribe" Unsubscribe.

Click "Settings" >> "Free Data Service" >> "View Details" >> "Unsubscribe" on the "My" page of the Penguin FM client to unsubscribe. After successfully unsubscribing, you can continue to enjoy the packaged data service until the end of the month if it has not expired this month. There will be no additional charges if you reopen this month.