The mobile king card is a pit

Mobile companies are still playing deceptive games, no wonder users are constantly losing. I saw 8 yuan's mobile king card on the Internet, and I thought the number I chose was quite good. I want to keep it for a long time. I booked 8 yuan's mobile king card online and went to the mobile company to get my number. It was originally a free trial this month, but it turned out to be 18 yuan every month. Call the mobile customer service and tell them that the mobile king card has no monthly card in 8 yuan, and the minimum is 18 yuan per month. You can see 8 yuan's monthly promotion anytime and anywhere in the business hall, but it turns out to be 18 yuan every month after receiving the card.