That depends on whether you are studying technology or joining. Joining requires an initial fee and a trademark use fee. Trademark use fees are charged every year, so you don't need to learn technology. Many company trademarks are free for you to use, just pay a fee.

But now, many people who say that they have joined are fake. They don't own a physical store, saying that someone else's store was introduced to you. You have to go and see for yourself whether the store uses his registered trademark and whether it has the same name as the legal person on his business license.