Why did I receive 300 4G messages in the first month?

Unicom 4G package SMS network age upgrade plan, the longer the network age, the more gifts. After successful processing, 50 domestic peer-to-peer SMS messages will be given in the next month, with 50 messages added in the first six months and 300 messages added in the sixth month and thereafter.

If you have a network age before changing to the 4G package, after upgrading to the 4G package, you will automatically start the network age upgrade plan and continue to use the network age. I suggest you contact your Unicom customer service to help you check.