Hola. Existen diferencias entre el plan que poseo y la que abono por mes.

[#1]

Mi plan de premium de $ 389 y pago $ 676.86

[Lyubka]

Hey there,

Thanks for reaching out to the Community about this. We hope you don't mind us answering in English as this is the official language of the forum. 

Can you start by taking a look at your Receipts page?

If you don't see any extra payment there, it means that you might be paying for 2 different accounts. We'd recommend to take a look at this page to see what you can do to check if you have a second account with us. 

On another note, it'd also be a good idea to check if your family or friends have used your payment info to pay for their Spotify subscription. If that's the case, they should cancel or change their payment method and reimburse you.
 

Hope this helps. If you need a hand with anything else, the Community is here for you.