To BBC NEWS Dear Sir or Madam, I am a chinese student and have use the smartphone app BBC NEWS for around two months. I quite enjoy it but rencently I found a mistake in the app. I have added a topic of "China" to "My News" but sometimes it doesn't update contents timely. For example, a news titled "China universities told to serve party" exists in the topic of "Asia" but nothing in the topic of "China". It's a program error or other problems? I would be grateful if you would be kind enough to answer me. Your respectifully Zhang Shuai