iPhone 4s streaming has stopped working

[stormo101]

So I have been enjoying having the use of Spotify on my iPhone.  It has allowed me to free up a lot of space by getting rid of a lot of the songs I had on my phone which I could now listen to on Spotify.

HOWEVER it stopped working yesterday.  I have seen similar problems but I haven't seen a solution that seems to work for me.
I have tried using my iPhone on Wifi and 3G and it doesn't make a difference.

Basically some songs will start and others wont at all even though the little play symbols appears in the top right corner.

I deleted Spotify off my iPhone and re-installed it and Spotify is working fine on my laptop.  I'm hoping it's something that will fix its self in a day or so (wishful thinking)

Pretty keen to get this fixed as I am paying for a service which I'm not able to use currently.