After store update i'm unable to download my purchased applciations.I bought 4squick like 2 months ago and i was able to download without paying again.After store shows "Buy" button instead of "Download".

I called nokia center and they said there must be a software issue about that.There is no limitation for downloading purchased application on Ovi store.We don't really know what to do actually so we suggest you to wait another update.

Lol ...