Hello! A little while ago I created a new account with my friend and we used it as a premium account for 3 months. I connected the new account with my facebook, but now I can not disconnect it and get back to my old one, since I always logged in with facebook. What can I do? Old account's id is 11180414750. Now I can log in only with my new username.
It seems that you have two different accounts. The best thing to do is get in contact with the support team to close one of them. You can reach them on Facebook or Twitter at @SpotifyCares or via email here.