What is the reason why China Unicom called?

There are generally the following reasons:

1. 11 is Unicom's customer service line;

2. Generally, you have called 11 to give feedback about the problem. After the problem has a result, Unicom will have a special person to reply to you through 11.

3. Unicom has some preferential activities or promotion policies, and will also contact customers to introduce the preferential policies through Unicom's marketing hotline or 11.

4. If you don't receive the 11 call in time, the customer service will contact you again at another time. Please pay attention to your call.