My username is random numbers and letters?

[ce2309]

When I try to log into the spotify desktop app or the website I have to use the username that they gave me(some random set of numbers & letters), or my email. When I am logged in, it shows my username as the one I have chosen, but I can't use it to log in. I also don't have facebook and I didn't sign up with facebook.

[KoenTech]

same......

[Adechaav]

Testing 

[Speak1]

test

[Cocaidan]

test

[11102048995]

Hi there. The fact is that though it may be confusing, everyone has a numbered username, so there is no way to change it. For further information click on the link https://support.spotify.com/sk/account_payment_help/account_help/change-my-username/

[arvindranjit]

Test