When you don't know a certain answer to a customer question be honest and tell them that you don't know the answer to this question however you will ask from your colleague about this question and will revert back to the customer.
<h3>What is a customer?</h3>
A customer is a person who is a buyer or a potential buyer of your products and or services.
The customer should be communicated of the estimated time that will be taken to revert back with the correct answer to the question. It is highly recommended that no guesses are made when you don't know a certain answer.
I would check all of those because they are all important. You need to stay clear by identifying the topic, to keep readers interested by finding things they enjoy, summarizing always leaves a clear thought in their heads, organizing and sequencing is important so that it’s easy to follow.