My username is a bunch of random numbers as well, I never deactivated my facebook or anyhting like that. The number it gave me is 125259441, is there a way to fix this? It was normal before, now with the number i cannot access the song feeds or my friends playlists or anyhting like that. Below i have a picture of what it looks like. Thanks.
When i setup my spotify i did so by clicking use my facebook login.
Now when I download the app and try to login it will not accept my facebook login credentials and when I use the weird number username from my account it also wont allow me to login with my facebook password.