Since around the 25th January my iPhone 5S has not been scrobbling any of my tracks to Last.fm

Steps to reproduce the issue:

1. First I went into using my data whilst on the go (using 3G/4G)
2. Then I attempted to use WiFi - which allows it to scrobble!
3. I then reconnected to data and app will not scrobble to Last.fm

What steps you’ve tried already:

- I've uninstalled and reinstalled whilst restarting my iPhone 5S.

- I've logged out and back in to scrobbling

- I've changed my password and re-attempted to log back in to scrobbling

My device is iPhone using iOS 9.2.1

I'm using a Premium Spotify account

I'm using the latest app version which I believe is 4.9.0.833

Any help would be greatly appreciated!