Why not delete the verification code of communication big data travel card?

So as to facilitate the use of travel cards.

If you don't receive the verification code in travel itinerary, first check whether the short message is intercepted, enter the short message page, click the+sign, then click the harassment interception, click the verification code short message, click to retrieve the information, or directly log in to the APP to avoid entering the verification code.

The verification code of the communication travel card is issued by the SMS gateway of each operator. If the number of requests is too large in a short time, resulting in SMS congestion (such as peak hours), you will not receive the verification code. I suggest waiting for a while to try again. In addition, if the user actively prohibits the value-added service, it needs to be reopened before receiving the verification code normally.