How is it that the Yuetong card can't fill the money, and then send a text message saying that the binding card is limited?

Generally, it is caused by the abnormal state of the bound bank card.

If the card bound by ETC is a credit card, and the credit card has to go to ETC after the deadline, it is very likely that the ETC deduction will fail, resulting in a blacklist.

Yuetong Card records the fund information in the card, which is equivalent to an electronic wallet. When users pass the expressway toll station, they use stored-value cards instead of cash to pay the tolls, and the funds are directly deducted from the cards.