Is there a possibility of deleting connection between account and my credit?

[user-removed]

Hi! At the very start, I wanted say sorry for my poor english. 
Well, in last year there was discount- 3 months for 0.99pln (currency in Poland) and my friend asked me to get this for him as he didn't have an bank account, so I agreed. I didn't cancel subscribtion right away because I didn't feel so. 
And, yeah... He blocked me some time ago, and last month (23 I think?) I was charged 20pln for subscrubtion of new month, where I didn't have spotify permium abled. Is there some possibility of deleting EVERY connection between accounts and my credit card? I would really appericiate every help as I don't want to pay for something I don't get. 😐 

[Maxim]

Hey @user-removed,

I'd recommend reaching out to Spotify Support so they can try to help you:

Contact form: https://support.spotify.com/contact-spotify-support/?contact
Facebook: https://www.facebook.com/SpotifyCares/
Twitter: https://twitter.com/spotifycares

If you get an automated reply email telling you to check the Knowledgebase or the Spotify Community, you need to reply back to it, even if it's from a no-reply address. Spotify Support usually replies within 24-48 hours.

[user-removed]

Well, I thought they helped, but... today, resub was taken another time. I'm not earning my own money still so even this amount hurts. 😕 Just withold my credit, let's see what happens next.