Why did Unicom's online business hall suddenly charge me 100 yuan, but I didn't pay it?

If you receive a successful payment message, but you don't pay the phone bill yourself, it is recommended to check whether your payment record really has a phone bill of 100 yuan. If you didn't pay the phone bill of 100 yuan yourself, it's likely that your family or friends paid the phone bill for you, or someone else staggered the phone bill and recharged it to your mobile phone number.