student license application: email blocked

I've applied for the student license for my Pycharm,  I've done the process 2 or 3 times but I never receive the email from Jetbrains (I use documentary way ,cause the system showed the edu. email got some problems), however today I use GitHub education account to apply, it shows my edu. email is blocked. how can I deal with this problem?

Hi, thanks for contacting.

Institution email might be blocked if the domain was used for license policy abuse.

You still can apply for an educational license. Please send us the email address you've used to

Thank you for reaching out to us. Unfortunately, we didn't get any information from you about the email address that you used in your application.

Please contact me with this information.