Fashion achievements won't open up any new playing opportunities besides the one title.

Do you use Android, iOS, or Chrome?

If you're on Android: other people have been complaining of the free platinum offers not working as well. I don't use w3i but tapjoy (free platinum providers via downloading apps)

If you're on iOS: I suggest you go to tapjoy.com and register there then do the free platinum off their list. You can click on the app you'd like to download, install and run, then gain you're platinum that way. Haven't had many problems with this provider.

I don't know if the tapjoy.com way works with Android since I've never tried it on my phone.