me han cobrado más dinero que mi tarifa sin consentimiento

[#1]

Yo siempre he tenido un plan de 5,99, este mes me han cobrado sin avisar 9,99. no lo entiendo por que soy estudiante.

[Alex]

Hi there,

Thanks for your post and Welcome to the Community! Hope you don't mind me replying in English.

What has most likely happened is that your Student Discount has expired and your Premium plan has automatically switched to Spotify Premium Individual. The discount lasts for 12 months, after which you need to re-apply it, if you're still a student. 

After you verify as a student again, all you need to do is update your payment details, for the subscription change to take effect. After that you'll be charged the discounted subscription amount.

You can have a look here for more info.

Cheers.