Duplicate Playlists

[Bigphil75]

I recently added more music to some of my playlists on itunes which, I then import to my Spotify account on my android smartphone & android tablet both Samsung brands. So my issue is that  before I imorted the playlists I updated in itunes, I deleted the the playlists I was going to replace so I won't have duplicate playlists. So I continued with my process of importing the playlists from itunes that I added more music to & to my surprise when I tried to sync the playlists for offline listening the playlists I previously deleted & the new playlists I imported which they have the same names that's why I delete them, because technically what I'm doing is updating the playlists i deleted. Anyway sorry for rambling, but the old playlists are still showing I can't delete them & some of the music isn't on the new playlists I imported from itunes. I should also mention that I've done this same process before with no issues what so ever till now. So I don't what to do. I uninstalled Spotify on my devices even on my desktop. Now on my desktop everything is going perfect it's just on my mobile devices. I delete the playlists from my desktop & imported them again several times to no avail. Anyone have any advice on this important issue? Thank you very much Spotify community.