System failure. Education discount activity is a discount activity launched by Apple in the back-to-school season, which needs to be bound to Apple Online Mall to use. The verification code is invalid because the system vulnerability causes the verification code to be unrecognizable. The solution is as follows:

1. First, open your mobile phone and log in to Apple Online Mall, and repeat the binding steps.

2. Secondly, when the prompt that the verification code is invalid pops up, use the screenshot function of the mobile phone to record the vulnerability.

3. Finally, send the system fault screenshot to the official customer service.