Purchased songs going to bottom of iOS playlist

Hi,

I am running the latest version of iOS, iTunes & Mountain lion.

I only purchase music from the iTunes store, so hopeully this will make things easier.

In the past when I purchased a song on my Mac, it will automaticly download on my iPhone and appear at the top of my purchased playlist.

However If i do this now, the purchased song appeares at the bottom of the playlist which isnt the way I have organised it.

The playlist is being organised by purchase date newest to oldest.

The only way to get around this is to sync my iPhone which I dont really want to do every time I buy a song.

Please help me, im sure I cannot be the only one!

Thanks,

Darryl