Spotify doesn't respect my account when my cellphone reboot

[Kuiny_2003]

Hi there.

I have a premium account and I have offline music just in my cell phone (android lollipop). But every time I reboot my cell phone or gets out of memory, spotify lose my account and all my offline music. My offline devices appear same cell phone many times (3 times different date). It makes me sick you known becouse I have to reinstall spotify in order to have the offline music in my SD and of course spend a lot of time downloading again all the music. I think I'll give up spotify premium. Anyways you should fix the issue.

Grettings.