In the first case, it has been registered. If your mobile phone card is handled with your ID card, then you need to bring your ID card to the local mobile business hall for a replacement card. It should be noted here that not all business halls can handle it, but a regular large business hall of China Mobile, rather than an agent business hall for roadside charging. You need to pay 10 yuan for a replacement card. In the second case, there is no registration. If your mobile phone card is not processed together with your ID card, it will be a bit troublesome for you to reissue it. You also need to bring your ID card to the local business hall, and you need to provide about ten contact numbers in recent days, that is, relatives and friends who have contacted recently. After you get these ready, you can reissue a new card with ten yuan.