I changed Unicom's mobile phone card. My girlfriend is mobile. Will it be expensive to send messages by phone in the future? If the family number is gone, will the telephone bill be high?

China Unicom will be a little more expensive to make a mobile phone, but it is far from high. Using mobile phone Q to send messages saves information costs, and it's a big deal to make a phone call for 20 cents a minute. Internet chat means chatting online by voice and video, so if you have a computer, you don't have to make a phone call. In fact, you can get a card. There are couples' packages or family numbers everywhere, so you need to pay the rent every month. One more card will solve everything.