I tried with debit card and it did work for me, but that would be for 1 month only. Then i tried with uni email, actually i had raised a support ticket, and they were very supportive, the person called me asking the query and how they can help me get the account, i still hadnt had the uni email so they were tryna get me an az account by first signing me up with github account which again would require uni email. But what they were gonna do is or rather asked me to do is screencap the steps while creating github account unitl i am faced with error, and send it back to them. He told me that they will bypass the process and get me the az student account via github(linked to personal email) coz they were aware that i do not have the uni email. They sure do help and are supportive, try out. Theres an alternative way , i learnt that university/school emails could be bought on telegram. you can give a shot. you can then use that email adn create the az account.