A call centre is a place where lots of people work to answer phone calls from customers. When you need help with something, like fixing your computer or figuring out how to use a website, you can call a call centre and someone will answer your call.
When you call a call centre, your call is usually answered by a person called a customer service representative. They will try to help you with your problem or answer any questions you have. They might ask you some questions too, like your name or what you need help with, so that they can better assist you.
Call centres use special computer programs to keep track of all the calls that come in and go out. These programs also help the customer service representative find information they need to help you.
Call centres can be located in different countries and time zones, which means you can get help anytime, day or night. Some call centres also offer services in different languages, so you can get help in your own language.