Bought premium on iMac, but can't use on iPhone! Help!

[hugorockz]

Hi guys! A quick question, I just bought the premium account on my iMac. It works fine on both my iMac and MacAir. However, I can't seem to use my premium account on my iPhone at all. I tried to log in and out and in again, but it still doesn't work. Any idea why?

[Luke]

Hey @hugorockz,

you should look on the receipt you got sent to your email address. This should say the username with that you subscribed to Spotify premium!
Try to log in with that account.
When you see a 10 digit number log in with Facebook!

Have a great day!

[hugorockz]

I've deleted that e-mail shortly few days after I signed up for the premium. By the way, I don't sign in with my Facebook account, it's Spotify account on its own. Is there any other way to do so? Is there no way that I can contact Spotify for this? I can't seem to find it.