I can not subscribe to student and there is no helpline

[HELPMEPLEASESPO]

my payment for student discount does not go through, only the full payment of 9.99$ . i can not get hold og the spotify team , does anyone know the link to get touch with them? 

it only gives me this :

• Oops, seems your card or payment provider is having a bad day. Don't worry, no money has been charged. Try again or use another payment method.

I tried different, devices, browsers, connection and different days, did not work.