I upgraded to premium in January and have had over 6 friends join premium since then. I have never been credited for these referrals. I have never recieved an email from Spotify with codes to use. I have emailed customer service 3 times over the last 5 months and have never even gotten a reply. I totally love Spotify and I am really frustrated with the lack of saupport and response and poor customer service. Could someone please help.