Unusual questions: Microsoft interview questions-5. subjective questions

(Note: in the future, we may make such a mistake. Since errors have been caused and the loss is inevitable, we can only try to minimize the loss. If you are able to answer these questions smartly and make mistakes again. This allows customers to have the least complaints and the company to have the least losses .)
1. A mobile phone manufacturer may lose half of the battery life due to design mistakes (not the charge discharge time ), the solution is to replace the battery for free or buy a coupon for the new phone of the factory for 50 yuan. Please write a letter to all purchased users to inform the solution.
2. When a senior leader visited a museum, he asked the museum librarians Mr. Wang for a brick of the Ming Dynasty as a souvenir. according to national regulations, no one may change the museum collection to private. The museum director needs to write a letter to the lead to retrieve the bricks.
3. Due to misoperations, The salesclerk sold the 20 thousand yuan laptop to Mr. Li at 12 thousand yuan. How did the manager of Miss Wang write a letter to Mr. Li to try to get the money back?