I have been using my skype account on my iphone successfully.The problem is it works fine on wi-fi networks but my skype account does not work in my 3G networks. really I don't know why ??
Might me youre carrier speed. Mine works fine on 3G
I guess you might have downloaded unrecommended app. It's simple now, you have to reinstall your skype and download it again, I guess it would start working well again. But yeah do remember download it recommended app.