One reason people get frustrated is because they get anxious.
And they often get anxious, as related to business, because they don’t have information.
With that said, start to keep an eye out for your customers anxiety.
When you notice they are getting anxious, do your best to alleviate it before it turns to frustration.
[…] By not doing any of these steps you risk leaving your customers in the dark, which will increase their anxiety and eventually lead to frustration. […]