There are two ways to do this. Let's look at the first one, open the KFC app.
Page, then click the "…" icon in the upper right corner to open the drop-down list.
You can see "customer service"; Then look at the second way to find customer service.
Method, click on the "My" menu of KFC app to open the "My" page.
Slide back, find the "Customer Service" option and click, then you can make a phone call.
Open the dialogue interface with customer service.