Some issues getting into Premium

[DaiZuke]

Hello guys, 

Just like I said above i have some issues regarding Premium. actually i wanted to try it out with the 60days free trial but thats where is starts.

I wanted to do it via prepaid(o2 germany) and everything went good. I got the mail/bill saying i started the 60days and i will be charged afterwards. But somehow my Premium wont work. I tried relogging, reinstalled spotify but nope i just wouldnt work. then i was like hmm maybe i did skip some part and started it agian. i got a mail to my phone saying i cancelled my subscription right after i wanted to subscribe again.

I'm just kinda confused and would appreciate it if someone could give me an answer real quick or if i did someting wrong. 

Thanks.